Gansser, U., Gansser, A., & Olschak, B. C. (1971). Bhutan: Land of the hidden treasures. Allen and Unwin.
Lua i Stíl Chicago (17ú heag.)Gansser, Ursula, August Gansser, agus Blanche Christine Olschak. Bhutan: Land of the Hidden Treasures. London: Allen and Unwin, 1971.
Lua MLA (9ú heag.)Gansser, Ursula, et al. Bhutan: Land of the Hidden Treasures. Allen and Unwin, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.