@book{1606,
	author = {Ríos Ibarra, Ramón Marcos.},
	title = {Ecología de Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) en el altiplano mexicano},
	publisher = {El autor,},
	year = {1991},
	address = {Montecillo, Méx. :},
	note = {42-130}
}