Sayce, V. (1989). Exercise can beat your arthistis. Avery Pu. Group.
Cita Chicago Style (17a ed.)Sayce, Valerie. Exercise Can Beat Your Arthistis. Avery Pu. Group, 1989.
Cita MLA (9a ed.)Sayce, Valerie. Exercise Can Beat Your Arthistis. Avery Pu. Group, 1989.
Precaución: Estas citas no son 100% exactas.