APA (7e ed.) Bronvermelding

Edited by Swallow, R. A. (1989). Clark's positioning in radigraphy (11th ed.). CBS.

Chicago (17e ed.) Bronvermelding

Edited by Swallow, R. A. Clark's Positioning in Radigraphy. 11th ed. Delhi: CBS, 1989.

MLA (9e ed.) Bronvermelding

Edited by Swallow, R. A. Clark's Positioning in Radigraphy. 11th ed. CBS, 1989.