000 00298nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a521578744
082 _aJF YAW
100 _aDr E.J Yeamen
245 0 _aYawning is catching
260 _bCambridge University Press
_c1993
942 _cJF
999 _c438795
_d438795