000 00426nam a2200181Ia 4500
001 23444
008 140410s9999 xx 000 0 und d
020 _a0-7494-0584-8
040 _cPK-LaUMT
082 _a 153.1532
_bHOR-I
100 _aSam Horn
245 _aImprove your concentration!
_cSam Horn
260 _aLondon,UK:
_bKogan Page,
_c1991
300 _a102 p.
546 _aEN
650 _aAttention
942 _cBK
999 _c23671
_d23671