Letter from Mark H. McCormack to Donald W. Giffin

Chicago citation style
McCormack, Mark H. Letter from Mark H. McCormack to Donald W. Giffin. 1976-04-07. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0004-f009-i003. (Accessed December 12, 2018.)
APA citation style
McCormack, Mark H, (1976-04-07) Letter from Mark H. McCormack to Donald W. Giffin. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0004-f009-i003
MLA citation style
McCormack, Mark H. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums700-b0004-f009-i003>.
Note: These citations are programmatically generated and may be incomplete.