APA استشهاد

Unruh, G. G., & Alexander, W. M. (1974). Innovations in secondary education (2nd. ed.). Holt Rinehart & Winston.

استشهاد بنمط شيكاغو

Unruh, Glenys G., و William M. Alexander. Innovations in Secondary Education. 2nd. ed. New York: Holt Rinehart & Winston, 1974.

MLA استشهاد

Unruh, Glenys G., و William M. Alexander. Innovations in Secondary Education. 2nd. ed. Holt Rinehart & Winston, 1974.