00280nam a2200121Ia 4500 220204s9999 xx 000 0 und d 547 BEH Behr, Lyell C Organic chemistry Ed.2 New York John Wiley 1959 BK 19715 19715 0 0 0 0 MAIN MAIN 2021-12-16 25.88 0 547 BEH 00447 2021-12-16 00:00:00 2022-02-14 BK