APA (7th ed.) Citation

(1980). The world of learning 1980-81 (31th ed.). Europa Publications.

Chicago Style (17th ed.) Citation

The World of Learning 1980-81. 31th ed. London: Europa Publications, 1980.

MLA (9th ed.) Citation

The World of Learning 1980-81. 31th ed. Europa Publications, 1980.

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