Παραπομπή σε μορφή APA (7η εκδ.)

Ripple, L., Polemis, B. W., & Alexander, E. (1964). Motivation, capacity, and opportunity: Studies in casework theory and practice. University of Chicago.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ripple, Lilian, Bernice W. Polemis, και Ernestina Alexander. Motivation, Capacity, and Opportunity: Studies in Casework Theory and Practice. Chicago: University of Chicago, 1964.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ripple, Lilian, et al. Motivation, Capacity, and Opportunity: Studies in Casework Theory and Practice. University of Chicago, 1964.