Olivarez, letter, 1991-06-15, to Ripston

Chicago citation style
Olivarez, Eligio, 1942-. Olivarez, letter, 1991-06-15, to Ripston. 1991-06-15. Retrieved from the Digital Public Library of America, http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll69/id/16909. (Accessed November 18, 2018.)
APA citation style
Olivarez, Eligio, 1942-, (1991-06-15) Olivarez, letter, 1991-06-15, to Ripston. Retrieved from the Digital Public Library of America, http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll69/id/16909
MLA citation style
Olivarez, Eligio, 1942-. Retrieved from the Digital Public Library of America <http://digitallibrary.usc.edu/cdm/ref/collection/p15799coll69/id/16909>.
Note: These citations are programmatically generated and may be incomplete.