Citazione Stile APA (7a Edizione)

Clark, G. Space, time and man: A prehistorian's view. Cambridge.

Citazione stile Chigago Style (17a edizione)

Clark, Grahame. Space, Time and Man: A Prehistorian's View. 1994: Cambridge.

Citatione MLA (9a ed.)

Clark, Grahame. Space, Time and Man: A Prehistorian's View. Cambridge.