APA (7th ed.) Citation
Ekvall, R. B. (1938). Gateway to Tibet: The Kansu-Tibetan border. Christian Publications, inc.
Chicago Style (17th ed.) Citation
Ekvall, Robert B. Gateway to Tibet: The Kansu-Tibetan Border. Harrisburg, Pa.: Christian Publications, inc, 1938.
MLA (9th ed.) Citation
Ekvall, Robert B. Gateway to Tibet: The Kansu-Tibetan Border. Christian Publications, inc, 1938.
Warning: These citations may not always be 100% accurate.