Mertz, Henriette
Gods from the far East: how the Chinese discovered America / by Henriette Mertz
Ballantine Books, 1972
 Buku Teks
McDermott, John W.
How to get lost and found in New Zealand
Waikiki , 1976
 Buku Teks
Peterson, Roger Tory
A field guide to the birds : a completely new guide to all the birds of eastern and central North America
Houghton Miffiln, 1980
 Buku Referensi
Bailyn, Bernard
The peopling of the British North America
Alfred A. Knopf, 21 cm
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Driver, Harold E.
Indians of North America
University of Chicago Press, 1961
 Buku Teks