Williams, J. F. (1956). The principles of physical education (6ª ed.). W:B: Saunders.
Tohutoru Kātū ChicagoWilliams, Jesse Feiring. The Principles of Physical Education. 6ª ed. Philadelphia: W:B: Saunders, 1956.
Tohutoro MLAWilliams, Jesse Feiring. The Principles of Physical Education. 6ª ed. W:B: Saunders, 1956.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.