APA (7th ed.) Citation

(1999). The world of learning, 2000 (50th ed.). Europa Pub.

Chicago Style (17th ed.) Citation

The World of Learning, 2000. 50th ed. London, UK: Europa Pub, 1999.

MLA (9th ed.) Citation

The World of Learning, 2000. 50th ed. Europa Pub, 1999.

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