Lua APA (7ú heag.)
Friesen, P. A. (1973). Designing instruction: A systematic or "systems" approach using programmed instruction as a model. Miller Pub. Co..
Lua i Stíl Chicago (17ú heag.)
Friesen, Paul A. Designing Instruction: A Systematic or "Systems" Approach Using Programmed Instruction as a Model. Santa Monica, Calif.: Miller Pub. Co., 1973.
Lua MLA (9ú heag.)
Friesen, Paul A. Designing Instruction: A Systematic or "Systems" Approach Using Programmed Instruction as a Model. Miller Pub. Co., 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.