@book{8340,
	author = {Cotero García, Marco Antonio.},
	title = {Control químico de la roya del clavel (Uromyces caryophyllinus (Schr.) Wint.) en Zacango, Villa Guerrero, México},
	publisher = {El autor,},
	year = {1993},
	address = {Chapingo, Méx. :}
}