Paleoindians and the Great Pleistocene Die-Off - American Academy of Arts and Sciences, National Humanities Center The first people who populated the Americas
(עזרה) Science and Creationism: A View from the NationalAcademy of Sciences, Second Edition, NationalAcademy of Sciences, NationalAcademy Press, Washington
Language in Nepal" (PDF), Proceedings of the NationalAcademy of Sciences, United States NationalAcademy of Sciences, 101 (15): 5692–5695, Bibcode:2004PNAS