00553nam a2200157   45000010011000000030004000110050017000150080041000320400012000730500021000851000023001062450170001292600043002993000026003426500027003680000018749OSt20191129070932.0120404s        xx            000 0 eng d  aL.CcLC  aQA 20b.C34 2961  aMerrill, Arthur A,  aHow do you use a slide rule? :bfor non-mathematicians and casual calculators: ten easy fifteen-minute lessons in multiplication and division /cby Arthur A Merrill.  aNew York :bDover publications,c1961.  a35 p. :ill :c cm.15.  aSlide rule - usagex-.