000 00501nam a2200181Ia 4500
008 180921t1983 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a57502
_bRAT
100 _aRatnayake, Winston
245 _aMutations and environment mutagena
260 _bNatural resources ,enegy and science authority
_c1983
300 _a77p., 21 cm
440 _aScience education No.10
650 _aEcology
_aToxicology
942 _cBK
999 _c14645
_d14645
003 LK-CoDNM
040 _aLK-CoDNM
_dLK-CoDNM
_eLK-CoDNM