@book{994,
	author = {Jones, J. Benton Jr.},
	title = {Plant nutrition and soil fertility manual},
	publisher = {CRC Press,},
	year = {2012},
	address = {Boca Raton, USA :},
	edition = {Second edition},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl//ebook_2/plant-nutrition-and-soil-fertility-manual/}
}