Science classes

Chicago citation style
Science classes. 1930-1989. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/rn3013846. (Accessed December 17, 2018.)
APA citation style
(1930-1989) Science classes. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/rn3013846
MLA citation style
Retrieved from the Digital Public Library of America <https://ark.digitalcommonwealth.org/ark:/50959/rn3013846>.
Note: These citations are programmatically generated and may be incomplete.