@book{70002,
	author = {Cornejo Oviedo, Eladio Humberto},
	title = {Aspectos ecológicos y dasonómicos del bosque de Pseudotsuga, Pinus, Abies en la Sierra La Marta, Arteaga, Coahuila},
	publisher = {El autor,},
	year = {1987},
	address = {Buenavista, Saltillo, C. :}
}