11. Smithsonian contributions to anthropology. v. 1. Early formative period of coastal Ecuador, Valdivia and Machalilla phases [with lists of literature cited; by] Betty J. Meggers, Clifford Evans, and Emillo Estrada. Bookmark Corporate/Agency Authors: National Museum and Smithsonian Institution Publisher: National Museum Date: 1965 SuDoc number: SI 3.11:1