[Footnotes]

[Footnotes]
2
Richard Hart- shorne, "The Nature of Geography," Annals of the Association of American Geographers, XXIX (1939), nos. 3 and 410.2307/2561063
Association (Lan- caster, Pennsylvania, 1939. 658 pp.
3
Leo Waibel, "Die Wirtschaftsform des tropischen Plantagenbaus," Probleme der Land- wirtschaftsgeographie: Wirtschaftsgeographische Abhandlungen, I (Breslau, 1933), 13-31.
Waibel
Die Wirtschaftsform des tropischen Plantagenbaus
13
I
Probleme der Landwirtschaftsgeographie: Wirtschaftsgeographische Abhandlungen
1933
4
J. R. Whitaker, "World View of Destruction and Conservation of Natural Resources," Annals of the Association of American Geographers, XXX (September, 1940), 143-6210.2307/2561168
143
C. O. Sauer, "Destructive Exploitation in Modern Colonial Expansion," Proceedings International Geo- graphical Congress, 1938,,II, Section IIIe, 496-99
Sauer
496
II
Proceedings International Geographical Congress
1938
C. O. Sauer, "Theme of Plant and Animal Destruction in Economic History," Journal of Farm Economics, XX (1938), 765-7510.2307/1231378
765
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