HOW DOES AN AGRICULTURAL REGION ORIGINATE

被引：36

作者：

SPENCER, JE

HORVATH, RJ

机构：

来源：

关键词：

D O I：

10.1111/j.1467-8306.1963.tb00434.x

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

页码：74 / 92

页数：19

共 46 条

[31]

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[32]

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[33]

ROSS ED, 1951, IOWA AGR, P22

[34]

SAUER CO, 1916, ILLINOIS STATE GEO B, V27, P155

[35]

SCHMIDT LB, 1934, AGR HIST, V8, P169

[36]

SMITH JR, 1925, N AM, P290

[37]

STONE NM, 1951, LETT J SCHRAMM FAMIL, P80

[38]

THRONE M, 1949, AGR HIST, V23, P130

[39]

WARNTZ W, 1957, AGR HIST, V31, P43

[40] CROP-COMBINATION REGIONS IN THE MIDDLE WEST [J].

Weaver, John C. .