APA-Zitierstil (7. Ausg.)

(1966). Some aspects of Piaget's work (9.ed.). Nat. Froebel Found.

Chicago-Zitierstil (17. Ausg.)

Some Aspects of Piaget's Work. 9.ed. London: Nat. Froebel Found, 1966.

MLA-Zitierstil (9. Ausg.)

Some Aspects of Piaget's Work. 9.ed. Nat. Froebel Found, 1966.