edited by David R. Soller ; convened by the Association of American States Geologists and the United States Geological Survey ; hosted by the Illinois State Geological Survey
Protokoly pedagogicheskago sobranīi︠a︡ uchiteleĭ nachalʹnykh uchilishch Karsskoĭ oblasti i prepodavateleĭ Karsskago gorodskogo uchilishcha v senti︠a︡bri︠e︡ 1902 goda