@book{76909,
	author = {Pérez Vicente, Neftalí.},
	title = {Descripción de dos especies de dalias arborescentes (Dahlia excelsa Benth y Dahlia imperialis Roezl ex Ortgies) en Chapingo, México},
	publisher = {El autor,},
	year = {1998.},
	address = {Chapingo, Méx. :}
}