抗战时期西北农科类院校的农作物改良与推广探析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1674-9200|30|2|50-54

ISSN: 1674-9200

Source: 文山学院学报, Vol.30, Iss.2, 2017-01, pp. : 50-54

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Abstract