000 00301nam a2200085Ia 4500
008 130123s9999 xx 000 0 und d
082 _a576.64
245 _aCurrent Contents (Agri. Biology and Environmental Sciences) Vol.31 Part-21-25
260 _aPhiladelphia.
_bInstitute for Scientific Information.
_c2000
999 _c78052
_d78052