Letter from Mark H. McCormack to E. C. M. Kniel

Chicago citation style
McCormack, Mark H. Letter from Mark H. McCormack to E. C. M. Kniel. 1979-06-05. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0005-f018-i034. (Accessed December 16, 2018.)
APA citation style
McCormack, Mark H, (1979-06-05) Letter from Mark H. McCormack to E. C. M. Kniel. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0005-f018-i034
MLA citation style
McCormack, Mark H. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums700-b0005-f018-i034>.
Note: These citations are programmatically generated and may be incomplete.