@book{104883,
	author = {Piaget, Jean, },
	title = {Essai sur les transformations des opérations logiques },
	publisher = {Presses Universitaires de France, },
	year = {1952.},
	series = {Bibliothèque de philosophie contemporaine. Logique et philosophie des sciences},
	address = {Paris : },
	edition = {1er. ed.},
	note = {Biblioteca Jacinto Martínez Lacalle.}
}