Cita APA (7a ed.)
Piaget Jean. (1969). The child's conception of physical causality (ed.). Littlefield.
Cita Chicago Style (17a ed.)
Piaget Jean. The Child's Conception of Physical Causality. ed. New Jersey: Littlefield, 1969.
Cita MLA (9a ed.)
Piaget Jean. The Child's Conception of Physical Causality. ed. Littlefield, 1969.
Precaución: Estas citas no son 100% exactas.