Tohutoro APA (7th ed.)

Brooks, D. (2007). Libro del personal trainer (1a. ed.). Paidotribo.

Tohutoru Kātū Chicago (17th ed.)

Brooks, Douglas. Libro Del Personal Trainer. 1a. ed. Barcelona: Paidotribo, 2007.

Tohutoro MLA (9th ed.)

Brooks, Douglas. Libro Del Personal Trainer. 1a. ed. Paidotribo, 2007.