APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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