Gaya APA
Stren, Nancy B. (1975).
Structured COBOL programming .
Canada:
John Wiley and Sons, Inc.
Gaya Chicago
Stren, Nancy B.
Structured COBOL programming.
Canada:
John Wiley and Sons, Inc,
1975.
Text.
Gaya MLA
Stren, Nancy B.
Structured COBOL programming.
Canada:
John Wiley and Sons, Inc,
1975.
Text.
Gaya Turabian
Stren, Nancy B.
Structured COBOL programming.
Canada:
John Wiley and Sons, Inc,
1975.
Print.