Clay, Bruce Search engine optimization all-in-one for dummies / by Bruce Clay and Susan Esparza - 2nd ed. - Hoboken, N.J. : Wiley, c2012 - xxii, 745 p. : ill. ; 24 cm. - For dummies . - For dummies . Includes index ISBN: 9781118024416 Subjects--Topical Terms: Web search engines