Think-And-Do-Book (p. 69)

Chicago citation style
Gray, William S. (William Scott), 1885-1960; Monroe, Marion, 1898-1983. Think-And-Do-Book (p. 69). 1940. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/449. (Accessed November 18, 2018.)
APA citation style
Gray, William S. (William Scott), 1885-1960; Monroe, Marion, 1898-1983, (1940) Think-And-Do-Book (p. 69). Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/449
MLA citation style
Gray, William S. (William Scott), 1885-1960; Monroe, Marion, 1898-1983. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/449>.
Note: These citations are programmatically generated and may be incomplete.