Journal of agricultural research. 15, 1918
Автор: United States. Dept. of Agriculture,Association of American Agricultural Colleges and Experiment Stations,Association of Land-Grant Colleges and Universities,Association of Land-Grant Colleges, 896 стр., издатель: "Книга по Требованию", ISBN: 978-5-8801-5222-3


4 из 5, 9 голос(-ов).