Science classes

Chicago citation style
Science classes. 1971-06-22. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/k930hk602. (Accessed December 13, 2018.)
APA citation style
(1971-06-22) Science classes. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/k930hk602
MLA citation style
Retrieved from the Digital Public Library of America <https://ark.digitalcommonwealth.org/ark:/50959/k930hk602>.
Note: These citations are programmatically generated and may be incomplete.