000 00320pam a2200121a 44500
008 160422s9999 xx 000 0 und d
082 _a005.53769 SAM
100 _aGreenwood, Ken
245 _aSams teach yourself ABAP/4 in 21 days.
260 _aIndiana
_bSams
_c1998
300 _a729p
650 _aComputer Programming
999 _c84306
_d84306