@book{7049, author = {Pelto, Pertti J. and Pelto, Gretel H.,}, title = {Anthropological research :}, publisher = {Cambridge University Press,}, year = {1978.}, address = {Cambridge ;}, edition = {2d ed.}, note = {Includes index.}, url = {http://www.loc.gov/catdir/description/cam032/76062583.html} }