开放图书详细信息
| University of California Libraries contributed to BHL | ||
| The American farm book or compend of American agriculture; being a practical treatise on soils, manures, draining, irrigation, grasses, grain, roots, fruits ... by R. L. Allen | ||
| Allen, R. L.@@Barlow, Joel,@@Browne, D. J. | ||
| keywords: Corn; United States; Agriculture; | ||
| Subject:植物学 | ||
| 美国 | ||