Letter from Mark H. McCormack to Allan A. Ryan

Chicago citation style
McCormack, Mark H. Letter from Mark H. McCormack to Allan A. Ryan. 1973-04-30. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0003-f008-i104. (Accessed December 15, 2018.)
APA citation style
McCormack, Mark H, (1973-04-30) Letter from Mark H. McCormack to Allan A. Ryan. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0003-f008-i104
MLA citation style
McCormack, Mark H. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums700-b0003-f008-i104>.
Note: These citations are programmatically generated and may be incomplete.