APA (7th ed.) Citation

Alpert, S. R., Brown, K., & Woolf, B. (1998). The design patterns smalltalk companion. Addison-Wesley.

Chicago Style (17th ed.) Citation

Alpert, Sherman R., Kyle Brown, and Bobby Woolf. The Design Patterns Smalltalk Companion. Reading, Mass.: Addison-Wesley, 1998.

MLA (9th ed.) Citation

Alpert, Sherman R., et al. The Design Patterns Smalltalk Companion. Addison-Wesley, 1998.