Cita APA

Loken, N. C., & Willoughby, R. J. Complete book of gymnastics.

Citación estilo Chicago

Loken, Newton C., and Robert J. Willoughby. Complete Book of Gymnastics.

Cita MLA

Loken, Newton C., and Robert J. Willoughby. Complete Book of Gymnastics.

Warning: These citations may not always be 100% accurate.