APA استشهاد

Newcomer, L. R. (1986). Theory and problems of programming with structured COBOL. Mc Graw - Hill.

استشهاد بنمط شيكاغو

Newcomer, Lawrence R. Theory and Problems of Programming with Structured COBOL. New Delhi: Mc Graw - Hill, 1986.

MLA استشهاد

Newcomer, Lawrence R. Theory and Problems of Programming with Structured COBOL. Mc Graw - Hill, 1986.