Yazar
George Putnam Gray
8 cilt bulundu.
George Putnam Gray · University of California, College of Agriculture, Agricultural Experiment Station
Sayfa sayısı yok · 1913
Insecticides / Analysis
George Putnam Gray · University of California, College of Agriculture, Agricultural Experiment Station
Sayfa sayısı yok · 1915
Fungicides / Insecticides
George Putnam Gray · University of California, College of Agriculture, Agricultural Experiment Station
Sayfa sayısı yok · 1917
Morning glories / Control
George Putnam Gray · University of California, College of Agriculture, Agricultural Experiment Station
Sayfa sayısı yok · 1918
Fungicides / Insecticides
George Putnam Gray · Agricultural Experiment Station
381 sayfa · 1916
Insecticides / Analysis / Fungicides
H. J. (Henry Josef) 1876- Quayle, George Putnam 1877-1968 Physi Gray, E. R. Physical and Chemical Hulbirt · Creative Media Partners, LLC
Sayfa sayısı yok · 2021
Kategori yok
Ralph E. (Ralph Eliot) 1874-1 Smith, E. O. (Edward Oliver) B. 1884 Essig, George Putnam 1877-1968 Gray · Creative Media Partners, LLC
Sayfa sayısı yok · 2021
Kategori yok