Cite Them Right 11th edition - Harvard

Lorents, A.C. (1997) GUI and Object Oriented Programming in COBOL.

Chicago Manual of Style 17th edition (full note)

Lorents, Alden C. GUI and Object Oriented Programming in COBOL.

American Psychological Association 7th edition

Lorents, A. C. (1997). GUI and Object Oriented Programming in COBOL.

Modern Language Association 9th edition

Lorents, A. C. GUI and Object Oriented Programming in COBOL. 1997.

ISO-690 (author-date, Deutsch)

LORENTS, Alden C., 1997. GUI and Object Oriented Programming in COBOL

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.