Cita APA (7a ed.)
Williams, J. F. (1964). The principles of physical education.
Cita estilo Chicago (17a ed.)
Williams, Jesse Feiring. The Principles of Physical Education. 1964.
Cita MLA (9a ed.)
Williams, Jesse Feiring. The Principles of Physical Education. 1964.
Precaución: Estas citas no son 100% exactas.