Amazon.com: Managing the Software Process (9780201180954): Watts S. Humphrey: Books
http://www.amazon.com/Managing-Software-Process-Watts-Humphrey/dp/0201180952/ref=pd_bxgy_b_text_b
http://www.amazon.com/Managing-Software-Process-Watts-Humphrey/dp/0201180952/ref=pd_bxgy_b_text_b