Tower 42 (English Wikipedia)

Hibbert, Christopher; Weinreb, Ben; Keay, John; Keay, Julia (2011). The London Encyclopaedia (3rd ed.). Pan Macmillan. p. 574. ISBN 9780230738782. Retrieved 20 August 2014.

building.co.uk

"The Notorious Work of Richard Seifert". building.co.uk. Retrieved 21 August 2014. (subscription required)

"Home | CTBUH Skyscraper Center". Buildingdb.ctbuh.org. Retrieved 20 August 2012.
"Home | CTBUH Skyscraper Center". Buildingdb.ctbuh.org. Retrieved 20 August 2012.

"NatWest could sell tower". The Independent. 23 March 1998. Retrieved 20 August 2014.
"500 workmen escape NatWest Tower blaze", The Independent, 18 January 1996. Retrieved 19 September 2010

Goodway, Nick (15 April 2010). "Outdated and second best, its time for the fall of Tower 42". Evening Standard. Retrieved 20 August 2014.
Nick Goodway (15 April 2010). "Outdated and second best, its time for the fall of Tower 42". Evening Standard. Retrieved 20 August 2012.

"Tower 42 Olympic LED Lighting". Archived from the original on 11 October 2012. Retrieved 25 September 2012.

"Richard Seifert". The Daily Telegraph. London. 29 October 2001.
South African tycoon Nathan Kirsh buys Tower 42 Daily Telegraph 21 December 2011
Hollingshead, Iain (21 February 2011). "Could you run a vertical marathon?". The Daily Telegraph.

Mowlem dives into the red Evening Standard 4 February 2005
"Tower 42 skyscraper on market for £300m". Thisislondon.co.uk. 13 April 2010. Archived from the original on 5 June 2011. Retrieved 20 August 2012.

"Rent Office Space in Tower 42, City of London | the Search Office Space Blog | Searchofficespace". Archived from the original on 9 June 2011. Retrieved 7 February 2016.
London's Growing Up!: NLA Insight Study (PDF). New London Architecture. 2014. p. 44. ISBN 978-0-9927189-1-6. Archived from the original (PDF) on 21 August 2014. Retrieved 21 August 2014.
"Tower 42 skyscraper on market for £300m". Thisislondon.co.uk. 13 April 2010. Archived from the original on 5 June 2011. Retrieved 20 August 2012.
"The Natwest Tower, London - Multi-deck space frame system". Alternative Access Logistics Ltd. Archived from the original on 7 July 2011. Retrieved 16 April 2010.
"Tower 42 Olympic LED Lighting". Archived from the original on 11 October 2012. Retrieved 25 September 2012.