WELLS, K. (1963). Posture exercise handbook: A progressive sequence approach. The Ronald Press Co.
Citazione stile Chigago Style (17a edizione)WELLS, Katharine. Posture Exercise Handbook: A Progressive Sequence Approach. New York: The Ronald Press Co, 1963.
Citatione MLA (9a ed.)WELLS, Katharine. Posture Exercise Handbook: A Progressive Sequence Approach. The Ronald Press Co, 1963.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.