000 00337nam a2200133Ia 4500
008 151018s9999 xx 000 0 und d
020 _a9251010854
080 _aF639.2:551.558
_bBEL-M
100 _aBellan, G.
245 _aManual of methods in Aquatic environment research
260 _c1981
300 _avii 31p.
942 _cFAO
_2udc
999 _c26046
_d26046