Schwager, M. (1947). Letter to Arno Heuduck, December 29, 1947. Saint Louis University Libraries Digitization Center.
Stile di citazione ChicagoSchwager, Mortimer. Letter to Arno Heuduck, December 29, 1947. Saint Louis University Libraries Digitization Center, 1947.
Citazione MLASchwager, Mortimer. Letter to Arno Heuduck, December 29, 1947. Saint Louis University Libraries Digitization Center, 1947.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.