APA (7th ed.) Citation

Carr, R., & Shafer, D. (1991). The power of PenPoint (1. print.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Carr, Robert, and Dan Shafer. The Power of PenPoint. 1. print. Reading, Mass: Addison-Wesley, 1991.

MLA (9th ed.) Citation

Carr, Robert, and Dan Shafer. The Power of PenPoint. 1. print. Addison-Wesley, 1991.

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