Cost analysis of apple production in Hebei Province[J]. Guangdong Agricultural Sciences, 2010, (1): 198-201. DOI: 10.3969/j.issn.1004-874X.2010.01.060
    Citation: Cost analysis of apple production in Hebei Province[J]. Guangdong Agricultural Sciences, 2010, (1): 198-201. DOI: 10.3969/j.issn.1004-874X.2010.01.060

    Cost analysis of apple production in Hebei Province

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