By E’toile L. Libbett, GRI, associate broker with Preferred Carlson, REALTORS®, Kalamazoo, Mich. Mentoring: A Success Guide for Mentors and Protégés. Floyd Wickman & Terri Sjodin. 167 pages. (New York: McGraw Hill, 1997.) $24.95. Floyd Wickman and Terri Sjodin...