Cita APA (7th ed.)
Armstrong, D. G., & Savage, T. V. (1990). Secondary education: An introduction (2nd ed.). Macmillan.
Cita Chicago (17th ed.)
Armstrong, David G., i Tom V. Savage. Secondary Education: An Introduction. 2nd ed. New York: Macmillan, 1990.
Cita MLA (9th ed.)
Armstrong, David G., i Tom V. Savage. Secondary Education: An Introduction. 2nd ed. Macmillan, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.