| 其他書名 | The Joint Effects of Temperature and Precipitation on Corn Yields |
| 出版 | Agricultural Experiment Station of the North Carolina State College of Agriculture and Engineering, and N.C. Department of Agriculture, cooperating, 1941 |
| URL | http://books.google.com.hk/books?id=PcZQAQAAMAAJ&hl=&source=gbs_api |