1.

図書
図書
1. The agricultural situation : economic effects of fluctuating prices
by G.F. Warren and F.A. Pearson
出版情報: New York : J. Wiley, 1924
シリーズ名: The price series
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2.

図書
図書
2. Interrelationships of supply and price
G.F. Warren and F.A. Pearson
出版情報: Ithaca, N.Y. : Cornell University, Agricultural Experiment Station, 1927
シリーズ名: Bulletin / Cornell University. Agricultural Experiment Station ; 466
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