APA (7th ed.) Citation

Heuduck, P. (1941). Post Office receipt, October 3, 1941. Saint Louis University Libraries Digitization Center.

Chicago Style (17th ed.) Citation

Heuduck, Paul. Post Office Receipt, October 3, 1941. Saint Louis University Libraries Digitization Center, 1941.

MLA (8th ed.) Citation

Heuduck, Paul. Post Office Receipt, October 3, 1941. Saint Louis University Libraries Digitization Center, 1941.

Warning: These citations may not always be 100% accurate.