Jefferson, T.A., Olson, P.A., Kieckhefer, T.R. and Rojas-Bracho, L. 2009. Photo-identification of the vaquita (<i>Phocoena sinus</i>): the world’s most endangered cetacean. Latin American Journal of Aquatic Mammals. 7, 1-2 (Dec. 2009), 53-56. DOI:https://doi.org/10.5597/lajam00134.