This is a Class Day picture

Chicago citation style
J.E. Purdy & Co. (Boston, Mass.). This is a Class Day picture. 1942. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/st74cs20v. (Accessed July 22, 2018.)
APA citation style
J.E. Purdy & Co. (Boston, Mass.), (1942) This is a Class Day picture. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/st74cs20v
MLA citation style
J.E. Purdy & Co. (Boston, Mass.). Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/st74cs20v>.
Note: These citations are programmatically generated and may be incomplete.