The Navajo Indians,
by Dane Coolidge and Mary Roberts Coolidge.
APA Citation
Coolidge, D., Coolidge, M. Roberts. (1930). The Navajo Indians. Boston: Houghton Mifflin company.
MLA Citation
Coolidge, Dane, 1873-1940, and Mary Roberts Coolidge. The Navajo Indians. Boston: Houghton Mifflin company, 1930.
Warning: These citations may not always be complete (especially for serials).