[2023-07-07]. (原始内容存档于2023-07-07). Purdue Engineering Dean in State Department on Global Technology. PurdueUniversity. [December 9, 2019]. (原始内容存档于2022-06-17)
The History of PurdueUniversity. West Lafayette, Indiana: PurdueUniversity Press. 1988: 316–318. ISBN 0-911198-95-4. PurdueUniversity's Krannert School