Once There Was a Waltz, a German film

Chicago citation style
Once There Was a Waltz, a German film. 1938. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/sayre/id/16990. (Accessed October 22, 2018.)
APA citation style
(1938) Once There Was a Waltz, a German film. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/sayre/id/16990
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/sayre/id/16990>.
Note: These citations are programmatically generated and may be incomplete.