Cita APA (7th ed.)

American Academy of Political and Social Science & Frey, J. H. (1979). Contemporary issues in sport. The Academy.

Cita Chicago (17th ed.)

American Academy of Political and Social Science i James H. Frey. Contemporary Issues in Sport. Philadelphia, Pa: The Academy, 1979.

Cita MLA (9th ed.)

American Academy of Political and Social Science i James H. Frey. Contemporary Issues in Sport. The Academy, 1979.