Yang, W. Y. (1958). Methods of farm mangement investigations for improving farm productivity.
Chicago Edition CitationYang, W Y. Methods of Farm Mangement Investigations for Improving Farm Productivity. Food & agriculture organizations of the United States, 1958.
Cita MLAYang, W Y. Methods of Farm Mangement Investigations for Improving Farm Productivity. 1958.
Atenció: Aquestes cites poden no estar 100% correctes.