Snowdon, Les The walking diet : walk back to fitness in 30 days / Les Snowdon and Maggie Himphreys. - London: Penguin Books, 1992. - 192 p. ; 18 cm. ISBN: 0140168656 Subjects--Topical Terms: Fitness walkingPhysical fitnessReducing diets Dewey Class. No.: 613.7176