000
00298nam a2200109Ia 4500
008
210616s9999 xx 000 0 und d
100
_a
Cunningham, William P.
245
0
_a
Principles of environmental science
260
_c
2013
650
_a
Social Science
_b
Social Problems and Services
942
_c
BK
999
_c
5160
_d
5160