Sacaben, G. B. (1976). Income tax administration in the Bureau of Internal Revenue Region No. 6 [microform]. Photoduplication Service.
Chicago (17e ed.) BronvermeldingSacaben, Gregorio B. Income Tax Administration in the Bureau of Internal Revenue Region No. 6 [microform]. Quezon City: Photoduplication Service, 1976.
MLA (9e ed.) BronvermeldingSacaben, Gregorio B. Income Tax Administration in the Bureau of Internal Revenue Region No. 6 [microform]. Photoduplication Service, 1976.
Let op: Deze citaties zijn niet altijd 100% accuraat.