APA (7e ed.) Bronvermelding

Levitz, R., Noel, L., & Saluri, D. (1985). Increasing student retention. Jossey-Bass.

Chicago (17e ed.) Bronvermelding

Levitz, Randi, Lee Noel, en Diana Saluri. Increasing Student Retention. San Francisco: Jossey-Bass, 1985.

MLA (9e ed.) Bronvermelding

Levitz, Randi, et al. Increasing Student Retention. Jossey-Bass, 1985.