APA (7th ed.) Citation

Ass, N. E. (1981). The world almanac r book of facts 1981. Newspaper Enterprise Ass.

Chicago Style (17th ed.) Citation

Ass, Newspaper Enterprise. The World Almanac R Book of Facts 1981. Newspaper Enterprise Ass, 1981.

MLA (8th ed.) Citation

Ass, Newspaper Enterprise. The World Almanac R Book of Facts 1981. Newspaper Enterprise Ass, 1981.

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