Cita APA (7a ed.)

O'Keefe, P. R., & Aldrich, A. (1955). Education through physical activities: Physical education and recreation for elementary grades (2d ed.). Mosby.

Cita Chicago Style (17a ed.)

O'Keefe, Pattric Ruth, y Anita Aldrich. Education Through Physical Activities: Physical Education and Recreation for Elementary Grades. 2d ed. St. Louis: Mosby, 1955.

Cita MLA (9a ed.)

O'Keefe, Pattric Ruth, y Anita Aldrich. Education Through Physical Activities: Physical Education and Recreation for Elementary Grades. 2d ed. Mosby, 1955.