00266nam a2200121Ia 4500082001100000100002700011245003300038250000600071260004500077300000800122500000800130650000600138  a591.51  aElbesfeldt, Irenaus E. 0aEthology Biology of Behavior  a-  aNew YorkbHolt, Rinehart & Winston, Inc.  a530  a124  a-