De Pol, John, A Commonplace Book: Profound and profane thoughts and observations gathered, set in type and printed, with embellishments, Maple Shade, New Jersey: The Pickering Press, 1985.

De Pol, John, A Commonplace Book: Profound and profane thoughts and observations gathered, set in type and printed, with embellishments, Maple Shade, New Jersey: The Pickering Press, 1985., Box: 7. John Anderson papers, MSS 0312. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/87389 Accessed September 16, 2024.