Rubio-Cisneros, N.T., Mesnick, S.L., Vázquez-Juárez, R., Urbán-Ramírez, J., Godard, C.A.J., Payne, R. and Dizon, A.E. 2006. Genetic sex determination supports the Gulf of California as an important habitat for male and female sperm whales (<i>Physeter macrocephalus</i>). Latin American Journal of Aquatic Mammals. 5, 2 (Dec. 2006), 125-128. DOI:https://doi.org/10.5597/lajam00104.