@book{40721,
	author = {Mortensen, Ernest. and Bullard, E.},
	title = {Horticultura tropical y subtropical},
	publisher = {Pax-México,},
	year = {1971.},
	address = {México, D.F. :},
	note = {Trad. de la 4 ed. en inglés de 1968}
}