The phonology and morphology of the Navaho language,
by Edward Sapir and Harry Hoijer.

APA Citation

Sapir, E., Hoijer, H. (1967). The phonology and morphology of the Navaho language. Berkeley: University of California Press.

MLA Citation

Sapir, Edward, 1884-1939, and Harry Hoijer. The Phonology And Morphology of the Navaho Language. Berkeley: University of California Press, 1967.

Warning: These citations may not always be complete (especially for serials).