APA Citation

Boar,roger. (1991). The world 's greatest ufo mysteries. London: Hamlyn.

Chicago Style Citation

Boar,roger. The World 's Greatest Ufo Mysteries. London: Hamlyn, 1991.

MLA Citation

Boar,roger. The World 's Greatest Ufo Mysteries. London: Hamlyn, 1991.

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