@book{88320,
	author = {Zavala González, Alejandro Adrián.},
	title = {Efecto alelopático de los extractos de raíz de Petiveria alliacea L.},
	publisher = {El autor,},
	year = {2003.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/99843.pdf}
}