Cita APA (7a ed.)
Bookwalter, K. W. (1964). Physical education in the secondary schools.
Cita estilo Chicago (17a ed.)
Bookwalter, Karl W. Physical Education in the Secondary Schools. 1964.
Cita MLA (9a ed.)
Bookwalter, Karl W. Physical Education in the Secondary Schools. 1964.
Precaución: Estas citas no son 100% exactas.