Παραπομπή σε μορφή APA (7η εκδ.)

Spring, J. H. (1994). Wheels in the head: Educational philosophies of authority, freedom, and culture from Socrates to Paulo Freire (2nd ed.). McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spring, Joel H. Wheels in the Head: Educational Philosophies of Authority, Freedom, and Culture from Socrates to Paulo Freire. 2nd ed. New York: McGraw-Hill, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spring, Joel H. Wheels in the Head: Educational Philosophies of Authority, Freedom, and Culture from Socrates to Paulo Freire. 2nd ed. McGraw-Hill, 1994.