APA-referens

Barbel Inhelder & Jean Piaget. (2007). The Growth Of Logical Thinking From Childhood to Adolescence: An essay on the construction of formal operationa structures. Routledge.

Chicago-stil citat

Barbel Inhelder och Jean Piaget. The Growth Of Logical Thinking From Childhood to Adolescence: An Essay on the Construction of Formal Operationa Structures. Oxen: Routledge, 2007.

MLA-referens

Barbel Inhelder och Jean Piaget. The Growth Of Logical Thinking From Childhood to Adolescence: An Essay on the Construction of Formal Operationa Structures. Routledge, 2007.