IXème Congrès international d'agriculture, Madrid, 1er au 7 mai 1911. Organisation.--Règlement et programme.--Rapports et procès-verbaux des séances du Congrès.--Conclusions.--Fêtes et réceptions.--Visites et excursions.--Voyage agricole.
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TextPublication details: Madrid, Impr. de B. Rodríguez, 1912.Description: 971 p. fold. map, plans, fold. col. diagrs. 25 cmSubject(s): LOC classification: - S401 .I6 1911
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