00526nam a2200169 a 450000500170000000800410001702000150005810000210007324500360009426000370013030000340016750000330020152000650023465000180029985200220031799900170033920191206015944.0080117s19uu    xx            00    eng d  a971110671X10aLeithold, Louis.10aTrigonometry /cLouis Leithold.0 aQuezon City :bJMC Press,c1989.  a1 v. (various pagings) : ill.  aIncludes appendix and index.  aExcerpts from the author's College algebra and trigonometry.  aTrigonometry.  7OLOPSC9200.00Php  c51873d51873