APA (7e ed.) Bronvermelding

Levin, J. R. (1977). Learner differences: Diagnosis and prescription. Holt, Rinehart and Winston.

Chicago (17e ed.) Bronvermelding

Levin, Joel R. Learner Differences: Diagnosis and Prescription. New York: Holt, Rinehart and Winston, 1977.

MLA (8e ed.) Bronvermelding

Levin, Joel R. Learner Differences: Diagnosis and Prescription. Holt, Rinehart and Winston, 1977.