Παραπομπή σε μορφή APA (7η εκδ.)

Kroll, W. P. (1982). Graduate study and research in physical education. Human Kinetics.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kroll, Walter P. Graduate Study and Research in Physical Education. Champaign, Illinois: Human Kinetics, 1982.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kroll, Walter P. Graduate Study and Research in Physical Education. Human Kinetics, 1982.