Cobol programming /

COBOL programming : a structured approach /

Cobol Programming a complete course in writing Cobol programs. /

Elements of structured Cobol programming.

A Guide to COBOL Programming

Cobol. A primer and programming guide.

Crystal clear cobol : an introduction to cobol and structured programming /

COBOL Support Packages, Programming and Productivity AIDS.

Cobol : programmierte Unterweisung /

COBOL : a practical approach /

Cobol for students /

Cobol for beginners /

Cobol for micros /

Advanced Cobol /

COBOL : Funkční moduly jazyka /

Structured Cobol : Flowchart Editio /

Cobol-Fibel /

COBOL : [pro počítač] EC 1021 /

COBOL 80 : praktická příručka Díl 1. 7. seminární školení k využití výpočetní techniky

ANS COBOL : a pragmatic approach /

Programming in COBOL /