APA (7th ed.) Citation

Shafer, D., & Ritz, D. A. (1991). Practical Smalltalk: Using Smalltalk/V. Springer New York.

Chicago Style (17th ed.) Citation

Shafer, Dan, and Dean A. Ritz. Practical Smalltalk: Using Smalltalk/V. New York, NY: Springer New York, 1991.

MLA (9th ed.) Citation

Shafer, Dan, and Dean A. Ritz. Practical Smalltalk: Using Smalltalk/V. Springer New York, 1991.