"Philadelphia Petroleum Marketing Exposition"

Chicago citation style
Maicher, Michael J. "Philadelphia Petroleum Marketing Exposition". 1981-11-05. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/71010. (Accessed December 14, 2018.)
APA citation style
Maicher, Michael J, (1981-11-05) "Philadelphia Petroleum Marketing Exposition". Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/71010
MLA citation style
Maicher, Michael J. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/71010>.
Note: These citations are programmatically generated and may be incomplete.