APA (7th ed.) Citation

(1993). The World Book pathfinder: A guide to information resources. World Book, Inc.

Chicago Style (17th ed.) Citation

The World Book Pathfinder: A Guide to Information Resources. Chicago [etc.]: World Book, Inc, 1993.

MLA (9th ed.) Citation

The World Book Pathfinder: A Guide to Information Resources. World Book, Inc, 1993.

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