TY - BOOK AU - Feliciano, Florentino T. AU - Uy, Fausto B. TI - Modern trigonometry : : plane and spherical AV - QA531 .F334 1988 PY - 1988/// CY - Manila : PB - Merriam and Webster, KW - Trigonometry, Plane KW - Trigonometry, Spherical ER -