No more aching back :
Root, Leon.
No more aching back : Dr. Root's new fifteen-minute-a-day program for a healthy back / Leon Root ; illustrations by Elisa Root. - New York : Penguin, 1991. - xx, 220 p. : ill. ; 22 cm.
Includes index.
0451170911
Backache.
Backache--Exercise therapy.
Backache--Prevention.
RD771.B217 / R66 1991
No more aching back : Dr. Root's new fifteen-minute-a-day program for a healthy back / Leon Root ; illustrations by Elisa Root. - New York : Penguin, 1991. - xx, 220 p. : ill. ; 22 cm.
Includes index.
0451170911
Backache.
Backache--Exercise therapy.
Backache--Prevention.
RD771.B217 / R66 1991