@book{8191,
	author = {Ruiz Magaña, Ema Celia.},
	title = {Control químico de la roya del clavel (Uromyces caryophyllinus (Shrank) Wint) en Tlaminca, Texcoco, Estado de México},
	publisher = {El autor,},
	year = {1993},
	address = {Chapingo, Méx. :}
}