Robert Millikan's high school graduating class[?]

Chicago citation style
Robert Millikan's high school graduating class[?]. Retrieved from the Digital Public Library of America, http://archives-dc.library.caltech.edu/islandora/object/ct1%3A8392. (Accessed December 19, 2018.)
APA citation style
Robert Millikan's high school graduating class[?]. Retrieved from the Digital Public Library of America, http://archives-dc.library.caltech.edu/islandora/object/ct1%3A8392
MLA citation style
Retrieved from the Digital Public Library of America <http://archives-dc.library.caltech.edu/islandora/object/ct1%3A8392>.
Note: These citations are programmatically generated and may be incomplete.