@book{1253,
	author = {Sheldon, William Herbert and Stevens, Stanley Smith},
	title = {Las variedades del temperamento},
	publisher = {Editorial Paidós},
	year = {1972.},
	series = {Biblioteca de psicología de la personalidad},
	address = {Buenos Aires},
	note = {Translation of : The varieties of temperament : a psychology of constitutional differences.}
}