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An Interpretation of the Situation in the United States
出版U.S. Government Printing Office, 1917
URLhttp://books.google.com.hk/books?id=mNm9Kf2YE_YC&hl=&source=gbs_api
註釋The point is stressed that the best progress in the field of fertilizer will come through a true coordination of its various parts, both among themselves and together in respect to other industries, as the result of enlightened cooperation between the fertilzer industry, the Government and the people.