Jackson Pollock and Lee Krasner at their home in East Hampton, New York

Chicago citation style
Zogbaum, Wilfrid, 1915-1965. Jackson Pollock and Lee Krasner at their home in East Hampton, New York. ca. 1949. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_3394&repo=DPLA. (Accessed December 11, 2018.)
APA citation style
Zogbaum, Wilfrid, 1915-1965, (ca. 1949) Jackson Pollock and Lee Krasner at their home in East Hampton, New York. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_3394&repo=DPLA
MLA citation style
Zogbaum, Wilfrid, 1915-1965. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3AAAADCD_item_3394&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.