(1931). Physical Education Series: Department of the Interior. Office of Education. Government Printing Office.
Chicago-Zitierstil (17. Ausg.)Physical Education Series: Department of the Interior. Office of Education. Washington: Government Printing Office, 1931.
MLA-Zitierstil (9. Ausg.)Physical Education Series: Department of the Interior. Office of Education. Government Printing Office, 1931.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.