000 00298nam a2200133Ia 4500
008 161121s9999 xx 000 0 und d
100 _aCOOMBS(J);HALL(DO)
245 0 _aTechniques in bioproductivity and photos
260 _cNIL
365 _b0
650 _aNIL
652 _a#N/A
942 _cBK
999 _c58668
_d58668