Hall, P., & Editot by Hall ,peter. (1974). The Penguin world atlas. Penguin.
Chicago Style (17th ed.) CitationHall, Peter, and Editot by Hall ,peter. The Penguin World Atlas. Harmondsworth: Penguin, 1974.
MLA (9th ed.) CitationHall, Peter, and Editot by Hall ,peter. The Penguin World Atlas. Penguin, 1974.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.