00390nam a2200145Ia 4500008004100000082001100041100002100052245003300073250001200106260004800118300001000166600002300176600002300199650002200222140113s9999 xx 000 0 und d a547 J9 a"Hansch, Corwin" aAn outline organic chemistry a2nd Ed. b"New York : McGraw-hill book company, 1959" a336p. a"Helmkamp, George" a"Helmkamp, George" aOrganic chemistry