Letter from Mark H. McCormack to George Blumberg

Chicago citation style
McCormack, Mark H. Letter from Mark H. McCormack to George Blumberg. 1970-12-05. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0002-f021-i010. (Accessed December 10, 2018.)
APA citation style
McCormack, Mark H, (1970-12-05) Letter from Mark H. McCormack to George Blumberg. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0002-f021-i010
MLA citation style
McCormack, Mark H. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums700-b0002-f021-i010>.
Note: These citations are programmatically generated and may be incomplete.