Keller, Gary, 1957- Shift : how top real estate agents tackle tough times / by Gary Keller with Dave Jenks and Jay Papasan. - New York : McGraw-Hill, c2009. - xxiii, 295 p. : ill. ; 23 cm. Includes index. ISBN: 9780071605267 (alk. paper) 0071605266 (alk. paper) LCCN: 2008029226 Subjects--Topical Terms: Real estate business.Real estate investment. Dewey Class. No.: 333.3068 KEL