Letter from Mark H. McCormack to Christiaan Barnard

Chicago citation style
McCormack, Mark H. Letter from Mark H. McCormack to Christiaan Barnard. 1968-10-15. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0001-f038-i072. (Accessed December 11, 2018.)
APA citation style
McCormack, Mark H, (1968-10-15) Letter from Mark H. McCormack to Christiaan Barnard. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums700-b0001-f038-i072
MLA citation style
McCormack, Mark H. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums700-b0001-f038-i072>.
Note: These citations are programmatically generated and may be incomplete.