Cogley, J. G. (1985). Hypsometry of the continents. Borntraeger.
Lua i Stíl Chicago (17ú heag.)Cogley, J. Graham. Hypsometry of the Continents. Berlin: Borntraeger, 1985.
Lua MLA (8ú heag.)Cogley, J. Graham. Hypsometry of the Continents. Borntraeger, 1985.
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