NORDBERG, H. O., BRADFIELD, J. M., & ODELL, W. C. (1962). Secondary school teaching. The Macmillan Co.
Lua i Stíl Chicago (17ú heag.)NORDBERG, H. Orvile, James M. BRADFIELD, agus William C. ODELL. Secondary School Teaching. New York: The Macmillan Co, 1962.
Lua MLA (9ú heag.)NORDBERG, H. Orvile, et al. Secondary School Teaching. The Macmillan Co, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.