Gaya APA
COBOL Basics: A Structured Approach. (1984).
New York:
Random House.
Gaya Chicago
COBOL Basics: A Structured Approach.
.
New York:
Random House,
1984.
.
Gaya MLA
COBOL Basics: A Structured Approach.
.
New York:
Random House,
1984.
.
Gaya Turabian
COBOL Basics: A Structured Approach.
New York:
Random House,
1984.
.