Hagerman, G. R. (1987). Efficiency walking and jogging. Bantam Books.
Citación estilo ChicagoHagerman, Gene R. Efficiency Walking and Jogging. Toronto, New York: Bantam Books, 1987.
Cita MLAHagerman, Gene R. Efficiency Walking and Jogging. Bantam Books, 1987.
Warning: These citations may not always be 100% accurate.