Alpert, S. R., Brown, K., & Woolf, B. (1998). The design patterns Smalltalk companion. Addison-Wesley.
Cita Chicago Style (17a ed.)Alpert, Sherman R., Kyle Brown, e Bobby Woolf. The Design Patterns Smalltalk Companion. Reading, Massachusetts: Addison-Wesley, 1998.
Cita MLA (8a ed.)Alpert, Sherman R., et al. The Design Patterns Smalltalk Companion. Addison-Wesley, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.