Citazione Stile APA (7a Edizione)

Colfer, G. R. (1986). Contemporary physical education. W. M. C.Brown.

Citazione stile Chigago Style (17a edizione)

Colfer, George R. Contemporary Physical Education. Dubuque, Iowa: W. M. C.Brown, 1986.

Citatione MLA (9a ed.)

Colfer, George R. Contemporary Physical Education. W. M. C.Brown, 1986.