ALCORN, Janis, Huastec Mayan Ethnobotany
, Hardcover, description
of plants used by Maya and how they treated human disorders with those plants.,
982 p.
ROMERO Molina, Javier, CATALOGO DE LA COLECCION DE DIENTES MUTILADOS
PREHISPANICOS IV parte, INAH, 190 p., thorough survey of dental decorations
in ancient Mexico with lots of photos and drawings.