00270nam a2200109Ia 4500008004100000040001500041082002500056100002500081245003600106260000900142300000900151231128s9999    xx            000 0 und d  aPHSAcPHSA  aCIR  591.56 W28 1989  aWalters, Mark Jerome 0aCourtship in the animal kingdom  c1989  a  p.