Brown, J. Douglas. "Fetter, Frank A."Archived March 4, 2016, at the Wayback MachineA Princeton Companion. (Alexander Leitch, ed.). Princeton University Press, 1978.
Brown, J. Douglas. "Fetter, Frank A."Archived March 4, 2016, at the Wayback MachineA Princeton Companion. (Alexander Leitch, ed.). Princeton University Press, 1978.