APA (7e ed.) Bronvermelding

Pepper, T., & Hoppé, E. O. (1978). Camera portraits by E. O. Hoppé, 1878 - 1972.

Chicago (17e ed.) Bronvermelding

Pepper, Terence, en Emil Otto Hoppé. Camera Portraits by E. O. Hoppé, 1878 - 1972. London, 1978.

MLA (8e ed.) Bronvermelding

Pepper, Terence, en Emil Otto Hoppé. Camera Portraits by E. O. Hoppé, 1878 - 1972. 1978.