Letter from Mark H. McCormack to John Madden

Chicago citation style
McCormack, Mark H. Letter from Mark H. McCormack to John Madden. 1977-02-14. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0004-f019-i040. (Accessed December 15, 2018.)
APA citation style
McCormack, Mark H, (1977-02-14) Letter from Mark H. McCormack to John Madden. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0004-f019-i040
MLA citation style
McCormack, Mark H. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums700-b0004-f019-i040>.
Note: These citations are programmatically generated and may be incomplete.