APA (7th ed.) Zitazioa

Bono, E. D. (1972). Children solve problems. Penguin.

Chicago Style (17th ed.) Zitazioa

Bono, Edward De. Children Solve Problems. Harmondsworth: Penguin, 1972.

MLA (9th ed.) Zitazioa

Bono, Edward De. Children Solve Problems. Penguin, 1972.