Y's way to a healthy back
Subtitle: instructor's manual.
Contributors: YMCA of the USA.
Edition: 3rd ed.
Publisher: YMCA of the USA
Published: 1991
Place of publication: Champaign, IL
Language: eng
Number of pages: 49
Subjects: Backache -- Exercise therapy -- Study and teaching.
Notes: Includes bibliographical references (p. 47).