Yazar
Angus Henry McDonald
10 cilt bulundu.
Angus Henry McDonald · U.S. Dept. of Agriculture
62 sayfa · 1941
Soil conservation / Agricultural history
Angus Henry McDonald · U.S. Dept. of Agriculture
48 sayfa · 1938
Soil conservation / Soil erosion / International law
Angus Henry McDonald · Sine nomine
Sayfa sayısı yok · 1982
History / Family farms / Irrigation laws / Law and legislation
Angus Henry McDonald · Public Affairs Institute
37 sayfa · 1958
Irrigation / Public Affairs Institute / Public Affairs Institute (Washington, D.C.)
Angus Henry McDonald · Center for Science in the Public Interest
54 sayfa · 1974
Directors of corporations / Industrial Trusts / Petroleum industry and trade / Trusts, Industrial
Angus Henry McDonald · Center for Science in the Public Interest
62 sayfa · 1974
Shale oils / Petroleum industry and trade