APA (7e ed.) Bronvermelding

Kallaus, N. F. (1992). Administrative office management (Abridged 10th ed.). South Western.

Chicago (17e ed.) Bronvermelding

Kallaus, Norman Francis. Administrative Office Management. Abridged 10th ed. Cincinnati, Ohio: South Western, 1992.

MLA (9e ed.) Bronvermelding

Kallaus, Norman Francis. Administrative Office Management. Abridged 10th ed. South Western, 1992.