APA

Piaget J., . (1976). The grasp of consciousness: action and concept in the young child. Cambridge: Harvard University Press.

Chicago

Piaget Jean, . 1976. The grasp of consciousness: action and concept in the young child. Cambridge: Harvard University Press.

Harvard

Piaget J., . (1976). The grasp of consciousness: action and concept in the young child. Cambridge: Harvard University Press.

MLA

Piaget Jean, . The grasp of consciousness: action and concept in the young child. Cambridge: Harvard University Press. 1976.