00881cam a22002531 4500 gs 30000143 DLC 20260227111334.0 821217s1929 cc abf 000 0 eng gs 30000143 (OCoLC)29098531 DLC MnU DLC a-cc--- QE294 .A4 ser. A, no. 6 QE294 .B3 Barbour, George Brown, 1890- The geology of the Kalgan area. Peking, [Ministry of Agriculture and Mines, the Geological Survey of China] 1929. xi, 148, 148a-f. 26, 2 p. illus., 2 fold. col. maps, plates. 27 cm. Geology China Hebei Sheng. Geology, Stratigraphic. Chang-chia-kʻon fu chin ti chih chih. Chung yang ti chih tiao chʻa so (China). Ti chih chuan pao. Chia chung ti 6 hao. 26794 26794