@book{32820,
	author = {Blalock, Hubert M. and Flórez, Luis Felix.,},
	title = {Construcción de teorias en ciencias sociales :},
	publisher = {Trillas,},
	year = {1984.},
	address = {Mexico :},
	note = {Incluye indice y apendice \ Titulo original: Theory  construction from verbal to mathematical formulations.}
}