APA (7th ed.) Citation

Piaget, J., & Roberts, G. (1973). To understand is to invent: The future of education (Advance copy.). Grossman.

Chicago Style (17th ed.) Citation

Piaget, Jean, and George-Anne Roberts. To Understand Is to Invent: The Future of Education. Advance copy. New York, NY: Grossman, 1973.

MLA (9th ed.) Citation

Piaget, Jean, and George-Anne Roberts. To Understand Is to Invent: The Future of Education. Advance copy. Grossman, 1973.