APA (7th ed.) Citation

(1970). The world of learning 1969-70 (20th ed.). Europa Publications.

Chicago Style (17th ed.) Citation

The World of Learning 1969-70. 20th ed. London: Europa Publications, 1970.

MLA (9th ed.) Citation

The World of Learning 1969-70. 20th ed. Europa Publications, 1970.

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