@Book{237716968,
author="Sahag{\'u}n, Bernardino de",
title="Primeros memoriales",
series="The civilization of the American Indian series",
year="1993",
month="1997",
publisher="Univ. of Oklahoma Press",
address="Norman, Okla.",
note="by Fray Bernardino de Sahag{\'u}n",
language="English"
}