004210000a22001570004500020001400000060000800014082001700022100002100039100001800060245005100078260002600129260000900155300000800164490002500172650006600197 a713122382 a100 a592.0142 HIG aHighnam, Kenneth aHill, Leonard aComparative enclorinology of the invertebtates aLondon, Edward Arnold c1969 a270 aContemporary Biology aInvertebrate endocrine systems/ Endocrome mechanisms-Annelida