000
00311nam a2200133Ia 4500
008
160316s1979 xxu||||| |||| 00| 0 eng d
020
_a
100
_a
P.C. Burnham
245
_a
Social And Ecological Systems
250
_a
1st
260
_a
LONDON
_b
ACADEMIC PRESS
_c
1979
300
_a
314
700
_a
R.F. Ellen
_a
999
_c
923
_d
923