BECKNER, W., & DUMAS, W. (1968). Readings in secondary education: A foundations approach. International Textbook.
Lua i Stíl Chicago (17ú heag.)BECKNER, Weldon, agus Wayne DUMAS. Readings in Secondary Education: A Foundations Approach. Scranton: International Textbook, 1968.
Lua MLA (9ú heag.)BECKNER, Weldon, agus Wayne DUMAS. Readings in Secondary Education: A Foundations Approach. International Textbook, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.