000 00331nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _a331 WAL/T RIC/T
100 _aRICHARD E WALTON
245 4 _aTHE IMPACT OF THE PROFESSIONAL ENGINEERING UNION
260 _bMINISTRY OF LABOUR AND EMPLOY-
_c1961
300 _a419
942 _cTB
999 _c22994
_d22994