Gonzales, Epifanio G. National Internal Revenue Code / Epifanio G. Gonzales, Celestina M. Robledo-Gonzales - 1997 revised edition. - Manila, Philippines : Rex Book Store, c1997. - xxii, 662 pages : 22 cm. ISBN: 9712320839 Subjects--Topical Terms: --Philippines--Philippines--Philippines LC Class. No.: KF5616.82 1977 / G65 1997