Appell, John.

Chicago citation style
Appell, John.. Retrieved from the Digital Public Library of America, https://digital.library.villanova.edu/Record/vudl:482330. (Accessed December 12, 2018.)
APA citation style
Appell, John.. Retrieved from the Digital Public Library of America, https://digital.library.villanova.edu/Record/vudl:482330
MLA citation style
Retrieved from the Digital Public Library of America <https://digital.library.villanova.edu/Record/vudl:482330>.
Note: These citations are programmatically generated and may be incomplete.