000 00685 a2200193 4500
005 20250515083149.0
264 0 _c20100702
008 201007s 0 0 eng d
022 _a0036-8075
024 7 _a10.1126/science.139.3555.636
_2doi
040 _aNLM
_beng
_cNLM
100 1 _aParmenter, G N
245 0 0 _aAssociation of American Geographers (E1).
_h[electronic resource]
260 _bScience (New York, N.Y.)
_cFeb 1963
300 _a636 p.
_bdigital
500 _aPublication Type: Journal Article
773 0 _tScience (New York, N.Y.)
_gvol. 139
_gno. 3555
_gp. 636
856 4 0 _uhttps://doi.org/10.1126/science.139.3555.636
_zAvailable from publisher's website
999 _c17317158
_d17317158