Cita APA (7th ed.)

Powers, A. (2003). Children's book covers: Great book jacket and cover design. Mitchell Beazley.

Cita Chicago (17th ed.)

Powers, Alan. Children's Book Covers: Great Book Jacket and Cover Design. London: Mitchell Beazley, 2003.

Cita MLA (9th ed.)

Powers, Alan. Children's Book Covers: Great Book Jacket and Cover Design. Mitchell Beazley, 2003.