APA (7th ed.) Citation

Piaget, J., & Wells, P. A. (1972). Psychology and epistemology : towards a theory of knowledge / (by) Jean Piaget ; translated from the French by P.A. Wells: Towards a theory of knowledge. Allen Lane.

Chicago Style (17th ed.) Citation

Piaget, Jean, and P A. Wells. Psychology and Epistemology : Towards a Theory of Knowledge / (by) Jean Piaget ; Translated from the French by P.A. Wells: Towards a Theory of Knowledge. London: Allen Lane, 1972.

MLA (9th ed.) Citation

Piaget, Jean, and P A. Wells. Psychology and Epistemology : Towards a Theory of Knowledge / (by) Jean Piaget ; Translated from the French by P.A. Wells: Towards a Theory of Knowledge. Allen Lane, 1972.

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