@book{2099,
	author = {Jacobs, Ruth Krehbiel },
	title = {The successful children's choir / },
	publisher = {FitzSimons, },
	year = {1948},
	address = {Chicago : },
	edition = {1 ed.},
	note = {contiene: notas y referencias bibliográficas Ej.1: 6º reimpresión, Ej.2: 4º edición}
}