APA Edition Citation

Grauer, R. T., & Crawford, M. A. (1979). COBOL Environment. Prentice Hall.

Chicago Edition Citation

Grauer, Robert T., and Marshal A. Crawford. COBOL Environment. New Jersey: Prentice Hall, 1979.

MLA Edition Citation

Grauer, Robert T., and Marshal A. Crawford. COBOL Environment. Prentice Hall, 1979.

Warning: These citations may not always be 100% accurate.