En
RuA. G. Printz. Russian trade with the Chinese on the Chuya River and travel to the town of Khobdo.
A. G. Printz. Russian trade with the Chinese on the Chuya River and travel to the town of Khobdo.
News of the imperial Russian geographical society.1865. T. 1
News of the imperial Russian geographical society.St. Petersburg: B. and., 1890.1865. T. 1. 1865.
1865
Русское географическое общество