Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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