APA aipamena

LITECKY, C. R. (1987). Structured cobola step by step approach. McGraw Hill.

Chicago Style aipamena

LITECKY, Charles R. Structured Cobola Step by Step Approach. McGraw Hill, 1987.

MLA aipamena

LITECKY, Charles R. Structured Cobola Step by Step Approach. McGraw Hill, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.