Cita APA (7a ed.)

Diaz, R. M., & Berk, L. E. (1992). Private speech: From social interaction to self-regulation. L. Erlbaum.

Cita Chicago Style (17a ed.)

Diaz, Rafael M., e Laura E. Berk. Private Speech: From Social Interaction to Self-regulation. New Jersey: L. Erlbaum, 1992.

Cita MLA (8a ed.)

Diaz, Rafael M., e Laura E. Berk. Private Speech: From Social Interaction to Self-regulation. L. Erlbaum, 1992.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.