Letter from Mark H. McCormack to William Zeiss

Chicago citation style
McCormack, Mark H. Letter from Mark H. McCormack to William Zeiss. 1978-09-15. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0005-f009-i123. (Accessed December 14, 2018.)
APA citation style
McCormack, Mark H, (1978-09-15) Letter from Mark H. McCormack to William Zeiss. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0005-f009-i123
MLA citation style
McCormack, Mark H. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums700-b0005-f009-i123>.
Note: These citations are programmatically generated and may be incomplete.