APA (7th ed.) Citation

Chai, W. A., & Chai, H. W. j. a. (1976). Programming standard COBOL. Academic Press.

Chicago Style (17th ed.) Citation

Chai, Winchung A., and Henry W. joint auht Chai. Programming Standard COBOL. New York: Academic Press, 1976.

MLA (9th ed.) Citation

Chai, Winchung A., and Henry W. joint auht Chai. Programming Standard COBOL. Academic Press, 1976.