APA (7e ed.) Bronvermelding

Walker, R., & Adelman, C. (1975). A guide to classroom observation. Methuen.

Chicago (17e ed.) Bronvermelding

Walker, Rob, en Clem Adelman. A Guide to Classroom Observation. London: Methuen, 1975.

MLA (9e ed.) Bronvermelding

Walker, Rob, en Clem Adelman. A Guide to Classroom Observation. Methuen, 1975.