Lua APA (7ú heag.)
Prem, H. J. (1997). The ancient Americas: A brief history and guide to research. University of Utah Press.
Lua i Stíl Chicago (17ú heag.)
Prem, Hanns J. The Ancient Americas: A Brief History and Guide to Research. Salt Lake City: University of Utah Press, 1997.
Lua MLA (9ú heag.)
Prem, Hanns J. The Ancient Americas: A Brief History and Guide to Research. University of Utah Press, 1997.
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