00578nam a2200229Ia 4500008004000000082001500040100000600055245009500061260004100156300001400197440000700211650001400218650000900232650001100241650000700252650001300259650001900272650001600291650001500307650001700322650000900339210210b1988 xxu||||| |||| 00| 0 eng d a591.5 ILLU a- aILLUSTRATED ENCYCLOPEDIA of wildlife. 52V: V46: Invertebrates.bPhylum Molluscs Gastropods aLondonbOrbis Publishing Ltd.,c1988 a2701-2760 a46 awildlife. aV46: aPhylum aof aMolluscs aInvertebrates. aILLUSTRATED aGastropods aENCYCLOPEDIA a52V: