Looking at reference materials in Babson Library

Chicago citation style
Looking at reference materials in Babson Library. 1972-1980. Retrieved from the Digital Public Library of America, http://cdm16122.contentdm.oclc.org/cdm/ref/collection/p15370coll2/id/2187. (Accessed July 18, 2018.)
APA citation style
(1972-1980) Looking at reference materials in Babson Library. Retrieved from the Digital Public Library of America, http://cdm16122.contentdm.oclc.org/cdm/ref/collection/p15370coll2/id/2187
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16122.contentdm.oclc.org/cdm/ref/collection/p15370coll2/id/2187>.
Note: These citations are programmatically generated and may be incomplete.