Digital Commonwealth

MLA

Class. 1970. Web. 20 Feb 2019. <https://ark.digitalcommonwealth.org/ark:/50959/7366bb22q>.

APA

Class [Photograph]. (1970). Retrieved from https://ark.digitalcommonwealth.org/ark:/50959/7366bb22q

Chicago

"Class." Photograph. 1970. Digital Commonwealth, https://ark.digitalcommonwealth.org/ark:/50959/7366bb22q (accessed February 20, 2019).