APA (7th ed.) Citation

Harmon, P., & Sawyer, B. (1991). Object craft: A graphical programming tool for object-oriented applications. Addison-Wesley.

Chicago Style (17th ed.) Citation

Harmon, Paul, and Brian Sawyer. Object Craft: A Graphical Programming Tool for Object-oriented Applications. Reading, Mass. u.a: Addison-Wesley, 1991.

MLA (9th ed.) Citation

Harmon, Paul, and Brian Sawyer. Object Craft: A Graphical Programming Tool for Object-oriented Applications. Addison-Wesley, 1991.