@book {, title = {Caravans of the Himalaya}, year = {1994}, note = {Eric Valli and Diane Summers ; illustrations, Tenzing Norbu.ill. (some col.), col. map ; 32 cm.Includes index.}, pages = {239}, publisher = {National Geographic Society}, organization = {National Geographic Society}, address = {Washington, D.C.}, keywords = {Dolp*a (Nepal) Social life and customs., Tibetans Nepal Dolp*a.}, isbn = {079222793X}, author = {Valli, Eric and Summers, Diane} }