2Robert B Ekvall. Cultural Relations on the Kansu-Tibetan Border[M]. Chicago: the University of Chicago Press, 1939.
3Robert B Ekvall. Gateway to Tibet: The Kansu-Tibetan Border[M].Harrisburg: Christian Publications, Inc, 1938.
4Robert B Ekvall. After Fifty Years: A Record of God's Working Through the Christian and Missionary Alliance[M]. Harrisburg: Christian Publications, 1939.
5Robert B Ekvall. Faithful Echo[M]. New Haven: College and University Press, 1960.
6Robert B Ekvall. Religious Observation in Tibet: Pattern and Function[M]. Chicago: University of Chicago Press, 1964.
7Robert B Ekvall. Fields On the Hoof: Nexus of Tibetan Nomadic Pastoralism[M]. New York: Holt, Rinehart and Winston, 1968.
8Robert B Ekvall. The Lama Knows: A Tibetan Legend is Born[M]. New Delhi: Oxford & IBH, 1979.
9Robert B Ekvall. Tents Against the Sky[M]. New York: Farrar, Straus & Young, 1955.
10C W Cassinelli and Robert B. Ekvall. A Tibetan principality: the political system of Sa sKya[M]. Ithaca, N.Y.: Cornell University Press, 1969.
