Yazar
a f sievers
26 cilt bulundu.
A. F. Sievers · U.S. Dept. of Agriculture
47 sayfa · 1942
Economic Botany / Medical Botany / Tropical plants
A. F. Sievers · U.S. Dept. of Agriculture
28 sayfa · 1941
Crop quality / Tanacetum cinerariifolium / Pyrethrins / Pyrethroid insecticides / Mechanical harvesting
A. F. Sievers · University Press of the Pacific
84 sayfa · 2005
Pharmacology / Traditional medicine & remedies / Health/Fitness / Medical / Consumer Health
A. F. Sievers · Office of Foreign Agricultural Relations, United States Dept. of Agriculture
20 sayfa · 1943
Insecticidal plants / Insecticides / Rodenticides / Poisonous plants / Rodenticide
A. F. Harding, Susanne Sievers, Natalie Venclová · Equinox Publishing
166 sayfa · 2006
Prehistoric Fortification / Congresses / Prehistoric Dwellings / Excavations (Archaeology) / Prehistoric Antiquities
A. F. Sievers · U.S. Dept. of Agriculture
36 sayfa · 1928
Essences and essential oils / Extraction (Chemistry)
A. F. Sievers · Yayınevi bilinmiyor
74 sayfa · 1930
Botany, Medical / Classification / Medical Botany / Medicinal plants
A. F. Sievers · United States Department of agriculture, Bureau of plant industry
Sayfa sayısı yok · 1941
Kategori yok
A. F. Sievers · U.S. Dept. of Agriculture
40 sayfa · 1938
Insecticidal plants / Poisonous plants / Insecticides
A. F. Sievers · Unión Panamericana
80 sayfa · 1948
Botany, Medical / Horticulture / Medical Botany / Medicinal plants
A. F. Sievers, M. S. Lowman, C. G. Marshall · Yayınevi bilinmiyor
Sayfa sayısı yok · 1932
Kategori yok
D. M. Crooks, A. F. Sievers, United States. Bureau of Plant Industry. Division of Drug and Related Plants · U.S.D.A.
13 sayfa · 1941
Insecticides / Rats / Control / Pests / Pesticidal plants
Robert L. Stump, A. Ralph Monaco, Rudolph F. Sievers, United States. Federal Security Agency, National Institutes of Health (U.S.) · Federal Security Agency, U.S. Public Health Service
98 sayfa · 1945
Weapons industry / Employees / Health and hygiene / Defense industries / Aplastic Anemia