000
00296nam a2200133Ia 4500
008
130223s9999 xx 000 0 und d
245
_a
Soil crusts
260
_a
Tucson
260
_c
1974
300
_a
58 p.
440
_a
No. 214; Arizona Agricultural
901
_p
S23399
942
_c
B
_2
udc
999
_c
133615
_d
133615