Cassel, D. (1983). The structured alternative: Program design, style and debugging.
Lua i Stíl Chicago (17ú heag.)Cassel, Don. The Structured Alternative: Program Design, Style and Debugging. 1983.
Lua MLA (9ú heag.)Cassel, Don. The Structured Alternative: Program Design, Style and Debugging. 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.