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Lua i Stíl Chicago (17ú heag.)North Atlantic Treaty Organization. Scientific Affairs Division, Erik de Corte, Marcia C. Linn, Heinz Mandl, agus Lieven Verschaffel. Computer-based Learning Environments and Problem Solving. Berlin, New York: Springer-Verlag, 1992.
Lua MLA (9ú heag.)North Atlantic Treaty Organization. Scientific Affairs Division, et al. Computer-based Learning Environments and Problem Solving. Springer-Verlag, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.