APA (7th ed.) Citation

Klein, É. (1995). <O >tempo. Instituto Piaget.

Chicago Style (17th ed.) Citation

Klein, Étienne. <O >tempo. Instituto Piaget, 1995.

MLA (8th ed.) Citation

Klein, Étienne. <O >tempo. Instituto Piaget, 1995.

Warning: These citations may not always be 100% accurate.