Gaya APA
Welburn, Tyler. (1986).
Structured Cobol: Fundamentals and style (2nd. ed).
Mayfield:
Mountain View, ca.
Gaya Chicago
Welburn, Tyler.
Structured Cobol: Fundamentals and style.
2nd. ed
Mayfield:
Mountain View, ca,
1986.
Text.
Gaya MLA
Welburn, Tyler.
Structured Cobol: Fundamentals and style.
2nd. ed
Mayfield:
Mountain View, ca,
1986.
Text.
Gaya Turabian
Welburn, Tyler.
Structured Cobol: Fundamentals and style.
2nd. ed
Mayfield:
Mountain View, ca,
1986.
Print.