APA (7th ed.) Citation

Treece, H., & Keeping, C. (1965). Horned helmet / Henry Treece ; illustrated by Charles Keeping. Puffin.

Chicago Style (17th ed.) Citation

Treece, Henry, and Charles Keeping. Horned Helmet / Henry Treece ; Illustrated by Charles Keeping. Harmondsworth: Puffin, 1965.

MLA (9th ed.) Citation

Treece, Henry, and Charles Keeping. Horned Helmet / Henry Treece ; Illustrated by Charles Keeping. Puffin, 1965.

Warning: These citations may not always be 100% accurate.