Hua-Pei Ching-Chi Ti-Li(Economic Geography of North China)by Sun Ching-Chih;Huang-Ho Chung-Yu Hsi-Pu Ti-Ch'u Ching-Chi Ti-Li(Economic Geography of the Western Region of the Middle Yellow River)by Wu Ch'uan-Chun;Nei-Meng-Ku Tzu-Chih-Ch'u Ching-Chi Ti-Li(Economic Geography of the Inner Mongolia Autonomous Region)by Sun Ching-Chih;Kwang-Tung Ching-Chi Ti-Li(Economic Geography of Kwangtung)by Liang Jen-Ts'ai;Hei-Lung Chiang Sheng Hei-Lung Chiang Chi Wu-Su-Li Chiang Ti-Ch'u Ching-Chi Ti-Li(Economic Geography of the Amur and Ussuri River Regions of Heilungkiang Province)by Wu Te-Chun; Kuo Lai-Hsi; Hsieh Hsiang-Fang