Sacaben, G. B. (1976). Income tax administration in the Bureau of Internal Revenue Region No. 6 [microform]. Photoduplication Service.
Cita Chicago Style (17a ed.)Sacaben, Gregorio B. Income Tax Administration in the Bureau of Internal Revenue Region No. 6 [microform]. Quezon City: Photoduplication Service, 1976.
Cita MLA (9a ed.)Sacaben, Gregorio B. Income Tax Administration in the Bureau of Internal Revenue Region No. 6 [microform]. Photoduplication Service, 1976.
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