00457nam a22001337a 4500008004100000020001800041082002200059100002000081245007800101260005300179300003600232650002400268700003100292180622b        xxu||||| |||| 00| 0 eng d  a9789719676263  aFil./516.242/L119  aLactuan, Leo L.  aModern plane trigonometry /cLeo L. Lactuan ; edited by Imelda R. Lactuan  aMalabon City :bJimczyville Publications,c2016.  aiv, 302 pages :bill. ;c23 cm.  aPlane trigonometry.  aLactuan, Imelda R.eeditor