Παραπομπή σε μορφή APA (7η εκδ.)

Bernstein, R. J. (1971). Praxis and action: Contemporary philosophies of human activity. University of Pennsylvania.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bernstein, Richard J. Praxis and Action: Contemporary Philosophies of Human Activity. Philadelphia: University of Pennsylvania, 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Bernstein, Richard J. Praxis and Action: Contemporary Philosophies of Human Activity. University of Pennsylvania, 1971.