"The 1st Academy Awards". Academy of Motion Picture Arts and Sciences. October 8, 2014. Archived from the original on February 18, 2021. Retrieved February 25, 2021.
"The 2nd Academy Awards". Academy of Motion Picture Arts and Sciences. Archived from the original on January 2, 2021. Retrieved January 2, 2021.
awardsdatabase.oscars.org
"The Official Academy Awards Database". Academy of Motion Picture Arts and Sciences. Archived from the original on December 23, 2017. Retrieved November 11, 2019. Reader must select "1927/28" in the "Award Year(s):" drop-down menu and press "Search".
"The Official Academy Awards Database". Academy of Motion Picture Arts and Sciences. Archived from the original on December 23, 2017. Retrieved November 11, 2019. Reader must select "1927/28" in the "Award Year(s):" drop-down menu and press "Search".
"The 1st Academy Awards". Academy of Motion Picture Arts and Sciences. October 8, 2014. Archived from the original on February 18, 2021. Retrieved February 25, 2021.