Gaya APA
WELBURN, Tyler. (1986).
Structured cobol fundamentals and style .
Mountain View:
Mayfield.
Gaya Chicago
WELBURN, Tyler.
Structured cobol fundamentals and style.
Mountain View:
Mayfield,
1986.
Text.
Gaya MLA
WELBURN, Tyler.
Structured cobol fundamentals and style.
Mountain View:
Mayfield,
1986.
Text.
Gaya Turabian
WELBURN, Tyler.
Structured cobol fundamentals and style.
Mountain View:
Mayfield,
1986.
Print.