Yazar
derek field
20 cilt bulundu.
Cilt sonuçları
Environmental Contaminants in Fish
Derek C. G. Muir, G. M. Pastershank, Northern River Basins Study (Canada) · The Study
110 sayfa · 1997
Technology & Engineering
Small Farms in West Africa
African Rural Economy Program, Derek Byerlee, Dunstan S. C. Spencer · Yayınevi bilinmiyor
304 sayfa · 1977
Agricultural laborers
Standard Statistical Calculations
Peter Gerald Moore, Eryl A. C. Shirley, Derek Ernest Edwards · Yayınevi bilinmiyor
148 sayfa · 1972
Statistics
Agricultural Engineering in Development
Bindeshwar Pathak, Food and Agriculture Organization of the United Nations, John E. Ashburner, Derek Greig · Food & Agriculture Org.
112 sayfa · 1992
Technology & Engineering