Population structure, effort and dye yielding of the snail Plicopurpura pansa (Gould, 1853) in the Mexican Pacific

od Michel-Morfín, JE, Chávez, EA, González, L
Izdano 2002

Skull development of the California sea lion (Zalophus californianus californianus)

od Vázquez-Cuevas, MJ, Aguayo-Lobo, A, Medrano-González, L
Izdano 2000