DDT Das Insektizid Dichlordiphenyltrichl
✍ V. B. Wigglesworth, E. Bernfus, O. Wälchli, V. Butovitsch (auth.), Paul Müller (
📂 Library
📅 1955
🏛 Birkhäuser Basel
🌐 German
No coin nor oath required. For personal study only.
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<p>Of all the food produced in the world one third is lost to insect pests, weeds and diseases, and the total world population is estimated as growing from 4000 million in 1975 to about 6000 million by the year 2000. To satisfy these needs, the world's farmers must meet the extra requirement every y