AGRICULTURAL PRODUCTION IN THE UNITED-STATES - THE PAST 50 YEARS AND THE NEXT

被引：3

|

作者：

HARRIS, CD

机构：

来源：

GEOGRAPHICAL REVIEW | 1957年 / 47卷 / 02期

关键词：

D O I：

10.2307/211590

中图分类号：

P9 [自然地理学]; K9 [地理];

学科分类号：

0705 ; 070501 ;

摘要：

引用

收藏

页码：175 / 193

页数：19

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