APA (7e ed.) Bronvermelding

Curtis, K. H. (1957). Correspondence, July 30, 1957 through August 21, 1957. Saint Louis University Libraries Digitization Center.

Chicago (17e ed.) Bronvermelding

Curtis, Kennth; Heuduck. Correspondence, July 30, 1957 Through August 21, 1957. Saint Louis University Libraries Digitization Center, 1957.

MLA (8e ed.) Bronvermelding

Curtis, Kennth; Heuduck. Correspondence, July 30, 1957 Through August 21, 1957. Saint Louis University Libraries Digitization Center, 1957.

Let op: Deze citaties zijn niet altijd 100% accuraat.