Robinson, Scott Studebaker, 1941- Toward an understanding of Kofan shamanism [microform] / by Scott S. Robinson - Ann Arbor, Mich. : University Microfilms International, 1979 - 4 microfiches ; 11 x 15 cm. Thesis (Ph.D.)-Cornell University, 1979 Subjects--Topical Terms: Cofan IndiansIndians of South America--Ecuador