000
00298nam a2200133Ia 4500
008
160316s1971 xxu||||| |||| 00| 0 eng d
020
_a
100
_a
Thomas C. Cheng
245
_a
Symbiosis
250
_a
1st
260
_a
NEW DELHI
_b
WILEY EASTERN PVT. LTD
_c
1971
300
_a
250
700
_a
_a
999
_c
11690
_d
11690