APA (7th ed.) Citation

(1997). World of learning. 1997 (47th ed.). Europa Publications.

Chicago Style (17th ed.) Citation

World of Learning. 1997. 47th ed. London: Europa Publications, 1997.

MLA (9th ed.) Citation

World of Learning. 1997. 47th ed. Europa Publications, 1997.

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