Cita APA (7th ed.)

Ryan, A. J. (1980). The physicain and sports medicine guide to running. McGraw-Hill.

Cita Chicago (17th ed.)

Ryan, Allan J. The Physicain and Sports Medicine Guide to Running. New York: McGraw-Hill, 1980.

Cita MLA (9th ed.)

Ryan, Allan J. The Physicain and Sports Medicine Guide to Running. McGraw-Hill, 1980.