D.K..
Breaking the Barrier : New sites Challenge clovis hunters as the earliest Americans. - Oregon-XXU : The Leach Publishing Group, 1999. - p. 38 : il. - Bimestral - Vol. I, no. 6, (Nov./Dec. 1999) - Discovering Archaeology ; no. 6 . - Estados Unidos. The Leach Publishing Group. .
Art¡culo en inglés.
Breaking the Barrier : New sites Challenge clovis hunters as the earliest Americans. - Oregon-XXU : The Leach Publishing Group, 1999. - p. 38 : il. - Bimestral - Vol. I, no. 6, (Nov./Dec. 1999) - Discovering Archaeology ; no. 6 . - Estados Unidos. The Leach Publishing Group. .
Art¡culo en inglés.
