Microsoft Corporation. (1988). Microsof COBOL optimizing complier version 3.0. BPB.
Lua i Stíl Chicago (17ú heag.)Microsoft Corporation. Microsof COBOL Optimizing Complier Version 3.0. New Delhi: BPB, 1988.
Lua MLA (9ú heag.)Microsoft Corporation. Microsof COBOL Optimizing Complier Version 3.0. BPB, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.