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082 _a591.51,
_bD, beh
100 _d_
110 _aKrebs, JR.
245 _aBehavioural ecology: an evolutionary approach
250 _a3rd ed.
260 _aOxford
_bBlackwell Scientific
_c1991
300 _axi, 482p, 23 cm.
690 _aAnimal behaviour, Evolution, Ecological aspects
710 _aDavies, NB.
964 _bEng
_c100
_d
_e010
_f
_g_
997 _a64656 LIBSC C
999 _c45294
_d45294