APA (7th ed.) Citation

Yenne, B. (1997). U.F.O: Evaluating the evidence. Grange Books.

Chicago Style (17th ed.) Citation

Yenne, Bill. U.F.O: Evaluating the Evidence. London: Grange Books, 1997.

MLA (9th ed.) Citation

Yenne, Bill. U.F.O: Evaluating the Evidence. Grange Books, 1997.