Horton William K E-learning tools and technologies : a consumer's guide for trainers, teachers, educators, and instructional designers / by William Horton and Katherine Horton. - New York : Wiley, 2003. - xii, 574 p. : ill. ; 24 cm. Includes index. ISBN: 0471444588 Subjects--Topical Terms: Employees--Training of--Computerassisted instruction LC Class. No.: HF5549.5.T7