Peter F. Drucker 80th Birthday Celebration, 1989

Chicago citation style
Peter F. Drucker 80th Birthday Celebration, 1989. 1989. Retrieved from the Digital Public Library of America, http://ccdl.libraries.claremont.edu/cdm/ref/collection/dac/id/2140. (Accessed December 14, 2018.)
APA citation style
(1989) Peter F. Drucker 80th Birthday Celebration, 1989. Retrieved from the Digital Public Library of America, http://ccdl.libraries.claremont.edu/cdm/ref/collection/dac/id/2140
MLA citation style
Retrieved from the Digital Public Library of America <http://ccdl.libraries.claremont.edu/cdm/ref/collection/dac/id/2140>.
Note: These citations are programmatically generated and may be incomplete.