González Trápaga, R., Aguirre, G., & Adest, G. A. (2000). Sex-steroids associated with the reproductive cycle in male and female Bolson tortoise, Gopherus flavomarginatus. ACTA ZOOLÓGICA MEXICANA (N.S.), (80), 101–117. https://doi.org/10.21829/azm.2000.80801893