Science classes

Chicago citation style
Science classes. 1973-02. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/rn301462c. (Accessed December 11, 2018.)
APA citation style
(1973-02) Science classes. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/rn301462c
MLA citation style
Retrieved from the Digital Public Library of America <https://ark.digitalcommonwealth.org/ark:/50959/rn301462c>.
Note: These citations are programmatically generated and may be incomplete.