@book{55,
	author = {Nelson, William R., FASLA.},
	title = {Planting design :},
	publisher = {Stipes Pub. Co., },
	year = {1985},
	address = {Champaign, IL :},
	edition = {2 ed.},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/57.pdf}
}