APA (7th ed.) Citation

(1989). Bookworm crazy Riddles. Bookworm.

Chicago Style (17th ed.) Citation

Bookworm Crazy Riddles. Singapore: Bookworm, 1989.

MLA (9th ed.) Citation

Bookworm Crazy Riddles. Bookworm, 1989.

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