APA (7th ed.) Citation

Doke, E. R., & Hardgrave, B. C. (1998). An introduction to object COBOL. Wiley.

Chicago Style (17th ed.) Citation

Doke, E. Reed, and Bill C. Hardgrave. An Introduction to Object COBOL. New York: Wiley, 1998.

MLA (8th ed.) Citation

Doke, E. Reed, and Bill C. Hardgrave. An Introduction to Object COBOL. Wiley, 1998.

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