An oldie but a goodie. Bill Bright was a personal inspiration of passion, vision, and steadfastness for many a global ministry beyond Campus Crusade. Bill's outline on fasting is also available in booklet form as single copies or in bulk:
http://www.campuscrusade.com/Revival_Prayer_and_Fasting/7_basic_steps.htm
A great resource for another frequently neglected spiritual discipline - Scripture memorization - is the book "Daws" which is a biography of Dawson Trotman the founder of the Navigators:
http://www.amazon.com/Daws-Man-Who-Trusted-God/dp/0891097961/ref=sr_1_4?ie=UTF8&s=books&qid=1240248744&sr=8-4
