F. H. King
4000 Jahre Landbau in China, Korea und Japan
Farmers of Forty Centuries
Economic relations of Wisconsin birds
Farmers of Forty Centuries - Permanent Farming in China, Korea, and Japan
Farmers of Forty Centuries or Permanent Agriculture in China, Korea and Japan
Farmers of Forty Centuries or, Permanent Agriculture in China, Korea and Japan - F. H. King
Irrigation and Drainage; Principles and Practice of Their Cultural Phases
Soil - Its Nature, Relations and Fundamental Principles of Management