APA

Aspelin P. L., Santos S. C. d., . (1981). Indian areas threatened by hydroelectric projects in Brazil. Copenhagen: International Work Group for Indigenous Affairs.

Chicago

Aspelin Paul L, Santos Silvio Coelho dos, . 1981. Indian areas threatened by hydroelectric projects in Brazil. Copenhagen: International Work Group for Indigenous Affairs.

Harvard

Aspelin P. L., Santos S. C. d., . (1981). Indian areas threatened by hydroelectric projects in Brazil. Copenhagen: International Work Group for Indigenous Affairs.

MLA

Aspelin Paul L, Santos Silvio Coelho dos, . Indian areas threatened by hydroelectric projects in Brazil. Copenhagen: International Work Group for Indigenous Affairs. 1981.