APA (7e ed.) Bronvermelding

NUNNALLY, J. C. (1981). Psychometric theory.-- ed.2. Tata McGraw hill.

Chicago (17e ed.) Bronvermelding

NUNNALLY, Jum C. Psychometric Theory.-- Ed.2. New Delhi: Tata McGraw hill, 1981.

MLA (9e ed.) Bronvermelding

NUNNALLY, Jum C. Psychometric Theory.-- Ed.2. Tata McGraw hill, 1981.