Classes, science

Chicago citation style
Classes, science. 1930-1989. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/rn301448j. (Accessed December 11, 2018.)
APA citation style
(1930-1989) Classes, science. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/rn301448j
MLA citation style
Retrieved from the Digital Public Library of America <https://ark.digitalcommonwealth.org/ark:/50959/rn301448j>.
Note: These citations are programmatically generated and may be incomplete.