Sweetgall, Robert. Rockport's fitness walking / [electronic resource] / Robert Sweetgall, James Rippe, and Frank Katch ; with John Dignam ; illustrations by Frederick Bush.. — Rockport ed.. — Marlboro, Mass. : : Rockport's Fitness Walking,, c1985.. — 176 p. : : ill. ; 23 cm.
On cover: "Includes beginning to advanced walking exercises." Reprint. Originally published: Fitness walking. New York : Perigee Books, 1985.