APA استشهاد

Brown, G. D. (1999). Advanced COBOL for structured and object-oriented programming (3rd ed.). John Wiley.

استشهاد بنمط شيكاغو

Brown, Gary Deward. Advanced COBOL for Structured and Object-oriented Programming. 3rd ed. New York: John Wiley, 1999.

MLA استشهاد

Brown, Gary Deward. Advanced COBOL for Structured and Object-oriented Programming. 3rd ed. John Wiley, 1999.