Cita APA (7a ed.)

Piaget, J. (1972). The principles of genetic epistemology. Routledge & Kegan Paul.

Cita Chicago Style (17a ed.)

Piaget, Jean. The Principles of Genetic Epistemology. London: Routledge & Kegan Paul, 1972.

Cita MLA (9a ed.)

Piaget, Jean. The Principles of Genetic Epistemology. Routledge & Kegan Paul, 1972.