Barth, F. 1956. Ecologic Relationships of Ethnic Groups in Swat. American Anthropologist 58. 1079-1089.
@article{barth1956a,
author = {Barth, F.},
journal = {American Anthropologist},
key = {Barth (1956a)},
pages = {1079-1089},
title = {Ecologic Relationships of Ethnic Groups in Swat},
volume = {58},
year = {1956}
}