APA Style
Structured COBOL programming. (1987).
California:
Wadsworth.
Chicago Style
Structured COBOL programming.
.
California:
Wadsworth,
1987.
.
MLA Style
Structured COBOL programming.
.
California:
Wadsworth,
1987.
.
Turabian Style
Structured COBOL programming.
California:
Wadsworth,
1987.
.