@book{69666,
	author = {Willcox, Isobel.},
	title = {120 actividades para el periodo de trabajo independiente},
	publisher = {Unión Tipográfica Editorial Hispano Americana},
	year = {c1968.},
	series = {Manual UTEHA breve},
	address = {México},
	note = {Translation of 120 activities for the independent work period.}
}