New math in gr. 2

Chicago citation style
New math in gr. 2. 1950-1965. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/k930c383s. (Accessed July 20, 2018.)
APA citation style
(1950-1965) New math in gr. 2. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/k930c383s
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/k930c383s>.
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