@book{66,
	author = {Prado Ramírez, Jesús Ronaldo},
	url = {http://fausac.usac.edu.gt/tesario/tesis/T-00066.pdf},
	title = {Dos experimentos sobre el cultivo de GLYCINE MAX var. Hill (Soya) /},
	address = {Guatemala,},
	publisher = {Universidad de San Carlos de Guatemala. Facultad de Agronomía:},
	year = {c1969.}
}