Top 50 schumacher lydia PDF Book Page 3

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Water for the Thousand Millions. Written by the Water Panel of the Intermediate Technology Development Group Founded by Dr. E.F. Schumacher

Arnold Pacey (Eds.)
·69 Pages
·1977
·4.094 MB

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BSTJ 20: 4. October 1941: A Rapid Visual Test for the Quantitative Determination of Small Concentrations of Calcium in Lead. (Schumacher, Earle E.; Bouton, G.M.)

2.9 MB

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