Ortman, E. J. (1962). Philosophy of Teaching. Philosophical Library.
Čikaški stil citiranjaOrtman, E J. Philosophy of Teaching. New York: Philosophical Library, 1962.
MLA način citiranjaOrtman, E J. Philosophy of Teaching. Philosophical Library, 1962.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.