APA (7th ed.) Citation
Humphrey, W. S. PSP: A Self-Improvement Process for Software Engineers. Addison-Wesley.
Chicago Style (17th ed.) Citation
Humphrey, Watts S. PSP: A Self-Improvement Process for Software Engineers. Upper Saddle River, EUA: Addison-Wesley.
MLA (9th ed.) Citation
Humphrey, Watts S. PSP: A Self-Improvement Process for Software Engineers. Addison-Wesley.
Warning: These citations may not always be 100% accurate.