@book{51537,
	author = {Conklin, Harold C.},
	title = {El estudio del cultivo de roza =},
	publisher = {Unión Panamericana,},
	year = {1963.},
	series = {Estudios y monografías ;},
	address = {Washington, D.C. :},
	note = {Opposite pages numbered in duplicate (30 p. of 2d group and p. 1-30 of 3d group)}
}