APA (7th ed.) Zitazioa

Bereiter, C. (1979). Bargains galore: Mathematical thinking stories and problems. Open Court.

Chicago Style (17th ed.) Zitazioa

Bereiter, Carl. Bargains Galore: Mathematical Thinking Stories and Problems. Illinois: Open Court, 1979.

MLA (9th ed.) Zitazioa

Bereiter, Carl. Bargains Galore: Mathematical Thinking Stories and Problems. Open Court, 1979.