Yazar
Anne Helms
5 cilt bulundu.
Cilt sonuçları
Profiles in the History of the U. S. Soil Survey
Douglas Helms, Anne B. W. Effland, Patricia J. Durana · Wiley & Sons, Limited, John
331 sayfa · 2008
Soil science / Soil surveys
Change & continuity
Ole Toft Hansen, Anne Helms, Ole Ravn · Gyldendal Uddannelse
193 sayfa · 1999
Emigration and immigration / Assimilation (Sociology) / Social life and customs