Cita APA (7a ed.)

Sawyer, W. W. (1964). Mathematician's delight. Penguin Books.

Cita Chicago Style (17a ed.)

Sawyer, W. W. Mathematician's Delight. Harmondsworth [etc.]: Penguin Books, 1964.

Cita MLA (9a ed.)

Sawyer, W. W. Mathematician's Delight. Penguin Books, 1964.