Jordan, Peg The fitness instinct : the revolutionary new approach to healthy exercise that is fun, natural, and no sweat / Peg Jordan. - Pennsylvania : Rodale Press, c1999. - xix, 235 p. : ill. ; 23 cm. ISBN: 1579540058 Subjects--Topical Terms: Physical fitnessExercise LC Class. No.: GV481 / J76 1999