00481nam a2200133Ia 4500008004100000020001500041100002300056245006400079260003400143300001700177650001500194999001900209952011900228180309s9999    xx            000 0 und d  a9717910391  aDeauna, Melecio C.  cLamayo, FloritaaBasic trigonometry for secondary schools /  aQuezon City :b2001cSIBS pub  av, 347 pages  aLogarithms  c356127d356127  00102lcc40aCLbCLcFILd2018-03-13eDONATIONl0oQA 440 .D275 2001pc21360r2018-05-08 00:00:00w2018-03-13yBK