544 A Arthur, Paul Semimicro qualitative analysis, by Paul Arthur and Otto M. Smith. 2d ed. New York and London, McGraw-Hill book company, inc., 1942. xi, 322 p. illus. diagrs. 23 cm <a id= "rdfa" about="http://bnjm.sld.cu/cgi-bin/item.py?idficha=bcuhcgrlyfof0060407" property = "oa:link" href="http://www.worldcat.org/oclc/ 556974804 ">WorldCat</a>