Nancy Drew and the Hidden Staircase

Chicago citation style
Nancy Drew and the Hidden Staircase. 1939. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/sayre/id/17769. (Accessed September 22, 2018.)
APA citation style
(1939) Nancy Drew and the Hidden Staircase. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/sayre/id/17769
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/sayre/id/17769>.
Note: These citations are programmatically generated and may be incomplete.