APA (7th ed.) Citation

Challenger.E. (1981). The Lost World. Puffin Books.

Chicago Style (17th ed.) Citation

Challenger.E. The Lost World. Puffin Books, 1981.

MLA (9th ed.) Citation

Challenger.E. The Lost World. Puffin Books, 1981.

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