Lua APA (7ú heag.)
Hamblin, W. K., & Christiansen, E. H. (1998). Earth's dynamic systems (8th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)
Hamblin, W. Kenneth, agus Eric H. Christiansen. Earth's Dynamic Systems. 8th ed. Upper Saddle River, N.J.: Prentice Hall, 1998.
Lua MLA (9ú heag.)
Hamblin, W. Kenneth, agus Eric H. Christiansen. Earth's Dynamic Systems. 8th ed. Prentice Hall, 1998.
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