Wells, K. F. (1963). Posture exercise handbook: A progressive sequence approach. Ronald Press.
Cita Chicago (17th ed.)Wells, Katharine F. Posture Exercise Handbook: A Progressive Sequence Approach. New York: Ronald Press, 1963.
Cita MLA (9th ed.)Wells, Katharine F. Posture Exercise Handbook: A Progressive Sequence Approach. Ronald Press, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.