APA (7th ed.) Citation

Niven, L. (1980). The Ringworld engineers. Holt, Rinehart, and Winston.

Chicago Style (17th ed.) Citation

Niven, Larry. The Ringworld Engineers. New York: Holt, Rinehart, and Winston, 1980.

MLA (8th ed.) Citation

Niven, Larry. The Ringworld Engineers. Holt, Rinehart, and Winston, 1980.

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