000 00258nam a22001217a 4500
040 _cPT
082 _a 636 DER 1974 C284
100 _aDEREK H
245 _apig management and production
260 _alondon
_bDEREK H
_c1974
300 _a203p;
942 _cEK
999 _c11193
_d11193