Bacon, P. (1989). World geography. Orlando: Harcourt Brace Jovanovich.
Chicago Style CitationBacon, Phillip. World Geography. Orlando: Harcourt Brace Jovanovich, 1989.
Cita MLABacon, Phillip. World Geography. Orlando: Harcourt Brace Jovanovich, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.