@book{93790,
	author = {Martínez Hernández, Alonso.},
	title = {Evaluación del cultivo de amaranto (Amaranthus hypochondriacus utilizando abonos orgánicos},
	publisher = {El autor,},
	year = {2007},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/105359.pdf}
}