APA

Philippakis A. S., Kazmier L. J., . (1982). Advanced COBOL. New York: McGraw-Hill.

Chicago

Philippakis Andreas S, Kazmier Leonard J, . 1982. Advanced COBOL. New York: McGraw-Hill.

Harvard

Philippakis A. S., Kazmier L. J., . (1982). Advanced COBOL. New York: McGraw-Hill.

MLA

Philippakis Andreas S, Kazmier Leonard J, . Advanced COBOL. New York: McGraw-Hill. 1982.