Martin Plowman (English Wikipedia)

"Archived copy". Archived from the original on 11 July 2011. Retrieved 9 July 2011.{{cite web}}: CS1 maint: archived copy as title (link)
"Archived copy". Archived from the original on 11 July 2011. Retrieved 9 July 2011.{{cite web}}: CS1 maint: archived copy as title (link)
"Plowman gets rolling with Snowball Express". www.indycar.com. 2 August 2011. Archived from the original on 16 September 2011.

motorstv.com

Weeks, James (27 February 2012). "Plowman makes sportscar switch with Conquest". motorstv.com. Motors TV. Archived from the original on 16 July 2012. Retrieved 27 February 2012.

paddock-motorsport.com

paddocktalk.com

"2012 Sebring 12: ALMS / Le Mans Race Recap – Conquest Endurance". PaddockTalk.com. 18 March 2012. Archived from the original on 20 March 2012.

racing-reference.info

"Martin Plowman – 2011 IZOD IndyCar Series Results". Racing-Reference. NASCAR Digital Media, LLC. Retrieved 1 August 2023.
"Martin Plowman – 2014 Verizon IndyCar Series Results". Racing-Reference. NASCAR Digital Media, LLC. Retrieved 1 August 2023.

sportscar365.com

"PLOWMAN: Bahrain Debrief – Sportscar365". 4 December 2013.

web.archive.org

"Archived copy". Archived from the original on 11 July 2011. Retrieved 9 July 2011.{{cite web}}: CS1 maint: archived copy as title (link)
"Archived copy". Archived from the original on 11 July 2011. Retrieved 9 July 2011.{{cite web}}: CS1 maint: archived copy as title (link)
"Plowman gets rolling with Snowball Express". www.indycar.com. 2 August 2011. Archived from the original on 16 September 2011.
Weeks, James (27 February 2012). "Plowman makes sportscar switch with Conquest". motorstv.com. Motors TV. Archived from the original on 16 July 2012. Retrieved 27 February 2012.
"2012 Sebring 12: ALMS / Le Mans Race Recap – Conquest Endurance". PaddockTalk.com. 18 March 2012. Archived from the original on 20 March 2012.
"Conquest Endurance Racing". Archived from the original on 24 September 2015. Retrieved 10 April 2012.
"Archived copy". Archived from the original on 27 August 2012. Retrieved 21 October 2013.{{cite web}}: CS1 maint: archived copy as title (link)
"WEC 6 Hours of Spa−Francorchamps > Results and chrono". Archived from the original on 19 October 2013. Retrieved 21 October 2013.
"Statistiques 24ème Heure / 24th Hour Statistics" (PDF). Automobile Club de l'Ouest. 23 June 2013. Archived from the original (PDF) on 22 October 2013. Retrieved 23 June 2013.
"Results and chrono WEC 6 hours of Sao Paulo". Archived from the original on 19 October 2013. Retrieved 20 October 2013.
"Archived copy". Archived from the original on 19 October 2013. Retrieved 20 October 2013.{{cite web}}: CS1 maint: archived copy as title (link)
"6 Hours of Fuji > Results and chrono". Archived from the original on 21 September 2013. Retrieved 20 October 2013.
"6 Hours of Shanghai > Results and chrono". Archived from the original on 9 November 2013. Retrieved 9 November 2013.
"Classification | FIA World Endurance Championship". Archived from the original on 3 December 2014. Retrieved 2 October 2013.
"Results and chrono WEC 6 hours of Bahrain". Archived from the original on 3 December 2013. Retrieved 1 December 2013.