Nations : Information Service Vienna. [2023-03-29]. (原始内容存档于2022-07-05) (英语). Ofer, Udi. 50 Years Into the War on Drugs, Biden-Harris can Fix the Harm It Created
February 2008 [23 January 2019]. (原始内容存档于2023-04-18). Bill Ramsey, 87; Was OFer On '45 Boston Braves. The Commercial Appeal. 6 January 2008 [23 January 2019]