@book{4261,
	author = {Borys, Michal Wlodzimierz. and Herrera Guadarrama, A. J.},
	title = {Fruit size and inorganic composition of cultivated mexican hawthorn grafted onto a common stock},
	note = {Sobretiro de: Acta Horticulturae 274 (93-102), 1990}
}