APA Style

Aczel, Amir D., United States. Presidents (1992 -- George Bush). (). The Riddle of the Compass : the ivention that changed the world. . : .

Chicago Style

Aczel, Amir D., United States. Presidents (1992 -- George Bush). The Riddle of the Compass : the ivention that changed the world.. : , . .

MLA Style

Aczel, Amir D., United States. Presidents (1992 -- George Bush). The Riddle of the Compass : the ivention that changed the world.. : , . .

Turabian Style

Aczel, Amir D., United States. Presidents (1992 -- George Bush). The Riddle of the Compass : the ivention that changed the world.. : , . .