Microsoft Corporation. (1988). Microsof COBOL optimizing complier version 3.0. BPB.
Dyfyniad Arddull ChicagoMicrosoft Corporation. Microsof COBOL Optimizing Complier Version 3.0. New Delhi: BPB, 1988.
Dyfyniad MLAMicrosoft Corporation. Microsof COBOL Optimizing Complier Version 3.0. BPB, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.