(1)
MEJÍA VILLANUEVA, O.; BERRUECOS VILLALOBOS, J. M.; VASQUEZ PELÁEZ, C. G.; DELGADILLO CALVILLO, A. C. Morphological Study of Chromosomes of Bighorn Sheep (Ovis canadensis), Domestic Sheep (Ovis Aries) and Their Crosses. Vet Mex OA 2009, 34.