APA (7e ed.) Bronvermelding

Katz issue, J. (1973). Services for Students. Jossey- Bass.

Chicago (17e ed.) Bronvermelding

Katz issue, Joseph. Services for Students. Sanfrancisco: Jossey- Bass, 1973.

MLA (9e ed.) Bronvermelding

Katz issue, Joseph. Services for Students. Jossey- Bass, 1973.