Παραπομπή σε μορφή APA (7η εκδ.)

Young, D. H. (1973). Pupil-directed versus teacher directed classrooms: Changes in work-study skills at three achievement levels. s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Young, Donna H. Pupil-directed Versus Teacher Directed Classrooms: Changes in Work-study Skills at Three Achievement Levels. [Quezon City: s.n.], 1973.

Παραπομπή σε μορφή MLA (9th εκδ.)

Young, Donna H. Pupil-directed Versus Teacher Directed Classrooms: Changes in Work-study Skills at Three Achievement Levels. s.n.], 1973.