Tien Shan : Travels in the Tian'-Shan' : 1856-1857 / Petr Petrovich Semenov ; edited and annotated by Colin Thomas ; translated by Liudmila Gilmour, Colin Thomas and Marcus Wheeler
Tien Shan -- Description and travel -- 19th century. : Travels in the Tian'-Shan' : 1856-1857 / Petr Petrovich Semenov ; edited and annotated by Colin Thomas ; translated by Liudmila Gilmour, Colin Thomas and Marcus Wheeler