000			00368nam a2200157Ia 4500
008			170207s9999 xx 000 0 und d
082			_a574.929 WEL-L2
100			_aWelch, Paul S
245			_aLimnology
250			_a2
260			_bMcGraw-Hill Book Company, New York
260			_c1952
300			_a538
650			_aLimnology; Marine biology
942			_cBOOKS
999			_c7476 _d7476