THE PROBLEM ABOUT THE SELECTION OF SOIL-PRFSERVING WOODY AND HERBACEOUS PLANTS OF THE STEPPE AND FOREST-STEPPE ZONES IN THE MIDDLE REACHES OF THE YELLOW RIVER
Tsui You-wen. THE PROBLEM ABOUT THE SELECTION OF SOIL-PRFSERVING WOODY AND HERBACEOUS PLANTS OF THE STEPPE AND FOREST-STEPPE ZONES IN THE MIDDLE REACHES OF THE YELLOW RIVER[J]. Acta Geographica Sinica, 1957, 23(1): 69-87.