Cita APA (7a ed.)

Fowler, M., & Beck, K. (1999). Refactoring: Improving the design of existing code. Addison-Wesley.

Cita Chicago Style (17a ed.)

Fowler, Martin, y Kent Beck. Refactoring: Improving the Design of Existing Code. Boston [etc.]: Addison-Wesley, 1999.

Cita MLA (9a ed.)

Fowler, Martin, y Kent Beck. Refactoring: Improving the Design of Existing Code. Addison-Wesley, 1999.