Green's nursery leading strings: the alphabet (p. [7-8])

Chicago citation style
Mason, W.G. (Walter George), 1820-1866. Green's nursery leading strings: the alphabet (p. [7-8]). 1840?. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/526. (Accessed November 18, 2018.)
APA citation style
Mason, W.G. (Walter George), 1820-1866, (1840?) Green's nursery leading strings: the alphabet (p. [7-8]). Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/526
MLA citation style
Mason, W.G. (Walter George), 1820-1866. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/526>.
Note: These citations are programmatically generated and may be incomplete.