APA (7e ed.) Bronvermelding

Jupp, E. W. (2002). Roof watching. Intellect.

Chicago (17e ed.) Bronvermelding

Jupp, Edmund W. Roof Watching. Bristol, UK ; Portland, OR: Intellect, 2002.

MLA (9e ed.) Bronvermelding

Jupp, Edmund W. Roof Watching. Intellect, 2002.