Humphrey, J. H. (1978). Physical education as a career: A text for the introductory course. C. Thomas.
Lua i Stíl Chicago (17ú heag.)Humphrey, James Harry. Physical Education as a Career: A Text for the Introductory Course. Springfield, Ill: C. Thomas, 1978.
Lua MLA (9ú heag.)Humphrey, James Harry. Physical Education as a Career: A Text for the Introductory Course. C. Thomas, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.