Duane, J. E. (1973). Individualized instruction: Programs and materials. Educational Technology.
Lua i Stíl Chicago (17ú heag.)Duane, James E. Individualized Instruction: Programs and Materials. New Jersey: Educational Technology, 1973.
Lua MLA (9ú heag.)Duane, James E. Individualized Instruction: Programs and Materials. Educational Technology, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.