Cita APA (7th ed.)

Sawyer, W. W. (1970). The search for pattern. Penguin Books.

Cita Chicago (17th ed.)

Sawyer, W. W. The Search for Pattern. Baltimore, Maryland: Penguin Books, 1970.

Cita MLA (9th ed.)

Sawyer, W. W. The Search for Pattern. Penguin Books, 1970.