Gaya APA
Richards, Roy Martin. (1987).
Microcomputing in COBOL : structured interactive applications .
America:
Science Research Associates.
Gaya Chicago
Richards, Roy Martin.
Microcomputing in COBOL : structured interactive applications.
America:
Science Research Associates,
1987.
Text.
Gaya MLA
Richards, Roy Martin.
Microcomputing in COBOL : structured interactive applications.
America:
Science Research Associates,
1987.
Text.
Gaya Turabian
Richards, Roy Martin.
Microcomputing in COBOL : structured interactive applications.
America:
Science Research Associates,
1987.
Print.