APA (7th ed.) Citation

(1955). The world book encyclopedia: In eighteen volumes and reading and study guide. World Affairs Press.

Chicago Style (17th ed.) Citation

The World Book Encyclopedia: In Eighteen Volumes and Reading and Study Guide. Chicago: World Affairs Press, 1955.

MLA (8th ed.) Citation

The World Book Encyclopedia: In Eighteen Volumes and Reading and Study Guide. World Affairs Press, 1955.

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