Cita APA

Sauvy, J., & Sauvy, S. (1974). The child's discovery of space. Penguin Educaction.

Citación estilo Chicago

Sauvy, Jean, and Simonne Sauvy. The Child's Discovery of Space. Harmondsworth, Eng.: Penguin Educaction, 1974.

Cita MLA

Sauvy, Jean, and Simonne Sauvy. The Child's Discovery of Space. Penguin Educaction, 1974.

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