Cita APA (7th ed.)

Carpenter,Stephen. *The Three Billy Goats Gruff.

Cita Chicago (17th ed.)

Carpenter,Stephen. *The Three Billy Goats Gruff. HarperCollins Publishers (Australia) Pty Ltd.

Cita MLA (8th ed.)

Carpenter,Stephen. *The Three Billy Goats Gruff.

Atenció: Aquestes cites poden no estar 100% correctes.