@book{785,
	author = {Trecker, Audrey R  and Trecker, Harleigh B },
	title = {Handbook of community service projects / },
	publisher = {Association Press, },
	year = {1960},
	address = {New York : },
	edition = {1 ed.},
	note = {Manual de proyectos par ala obra social en comunidad}
}