Casey, letter, 1991-06-25, to Ray

Chicago citation style
Casey, Michael J. Casey, letter, 1991-06-25, to Ray. 1991-06-25. Retrieved from the Digital Public Library of America, http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll69/id/16918. (Accessed November 18, 2018.)
APA citation style
Casey, Michael J, (1991-06-25) Casey, letter, 1991-06-25, to Ray. Retrieved from the Digital Public Library of America, http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll69/id/16918
MLA citation style
Casey, Michael J. Retrieved from the Digital Public Library of America <http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll69/id/16918>.
Note: These citations are programmatically generated and may be incomplete.