00576nam a2200217Ia 4500 CTU_97504 210402s9999 xx 000 0 und d 310.40 546.22 E57 Enghg, Per Encyclopedia of the elements : Technical data, history, processing, applications Per Enghg Berlin Wiley VCH 2004 Chemical elements Encyclopedias Tuyến Trung tâm Học liệu Trường Đại học Cần Thơ