545.072 Be Q Becher , Ronald Quantitative inorganic analysis [by] R. Belcher and A. J. Nutten in assosiation with A . N. G . Mac Donal . [ 3d . ed. ] London , Butterworthe [ c1970] 425 p. ilus . 25 cm . <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0100294" property = "oa:link" href="http://www.worldcat.org/oclc/251728394">WorldCat</a>