000 00411nam a2200157 4500
001 28109/80
005 20130515014401.0
008 111112s9999 xx 000 0 und d
082 0 0 _a371. 335 pow
100 1 _a"powell, l s. "
245 1 0 _aAguide to the use of visual aids:
_b/
_c I.S. Powell
250 _a1 ed.
260 _auk :
_bbritish association
_c.
300 _a", 36p.;
_c24 cm."
942 _2lcc
_cBK
999 _c19049
_d19049