Century 21 Countdown, Vol. 1(3), Summer, 1960

Chicago citation style
Unknown. Century 21 Countdown, Vol. 1(3), Summer, 1960. 1960. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ptec/id/3861. (Accessed June 20, 2018.)
APA citation style
Unknown, (1960) Century 21 Countdown, Vol. 1(3), Summer, 1960. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ptec/id/3861
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ptec/id/3861>.
Note: These citations are programmatically generated and may be incomplete.