000 00613nam a2200157 a 4500
005 20200203081330.0
008 080117s19uu xx 00 eng d
020 _a9717910391
100 1 0 _aDeuna, Melecio C.
245 1 0 _aBasic trigonometry for secondary Schools /
_cMelecio C. Deuna, Florita C. Lamaya.
260 0 _aQuezon City :
_bSIBS Pub. House,
_cc1998.
300 _aix, 347 p. : ill.
500 _aIncludes appendices, glossary, bibliography and index.
650 _aTrigonometry
_xStudy and teaching (Secondary)
852 _7Donation
999 _c63720
_d63720