APA (7e ed.) Bronvermelding

Langhoff, W. (1935). Rubber truncheon: Being an account of thirteen months spent in a concentration camp. Constable.

Chicago (17e ed.) Bronvermelding

Langhoff, Wolfgang. Rubber Truncheon: Being an Account of Thirteen Months Spent in a Concentration Camp. London: Constable, 1935.

MLA (8e ed.) Bronvermelding

Langhoff, Wolfgang. Rubber Truncheon: Being an Account of Thirteen Months Spent in a Concentration Camp. Constable, 1935.