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Collection of Papers on Soil Science of the Estonian Agricultural Academy

Eesti Põllumajanduse Akadeemia

出版	Israel Program for Scientific Translations; [available from the U.S. Department of Commerce, Clearinghouse for Federal Scientific and Technical Information, Springfield, Va.], 1969
URL	http://books.google.com.hk/books?id=PZs6AAAAMAAJ&hl=&source=gbs_api