SSpanish contact at ChipalSpanish contact at Chipalde Mary ButlerMateriasAntiquitiesMayasExcavations (Archaeology)Maya potteryEdiciones (1)Spanish contact at Chipal (1959)Kommissionverlag von Lucas Gräfe & Sillem · inglésMás obras de Mary ButlerPPiedras Negras preliminary papersPiedras Negras preliminary papersTThe work of the Eldridge R. Johnson Middle American expeditiThe work of the Eldridge R. Johnson Middle American expeditions of the University Museum, Philadelphia, at Piedras Negras, Peten, GuatemalaAArchæological problems in Erie County Pennsylvania
TThe work of the Eldridge R. Johnson Middle American expeditiThe work of the Eldridge R. Johnson Middle American expeditions of the University Museum, Philadelphia, at Piedras Negras, Peten, Guatemala
TThree archaeological sites in Somerset County, Pennsylvania Three archaeological sites in Somerset County, Pennsylvania ..