MLA

Ritter, Carl, 1779-1859. Zemlevi︠e︡di︠e︡nie K. Rittera : geografii︠a︡ stran Azii nakhodi︠a︡shchikhsi︠a︡ v neposredstvennykh snoshenii︠a︡kh s Rossiei︠u︡. t.2. 1867-1873.. https://collections.library.yale.edu/catalog/30107889.

APA, 6th edition

Ritter, Carl, 1779-1859. (["t.2"])(1867-1873.)[Zemlevi︠e︡di︠e︡nie K. Rittera : geografii︠a︡ stran Azii nakhodi︠a︡shchikhsi︠a︡ v neposredstvennykh snoshenii︠a︡kh s Rossiei︠u︡]. https://collections.library.yale.edu/catalog/30107889.