-
2551
-
2552
National internal revenue code, Commonwealth act no. 446. (In force and effect July 1, 1939) [microform].
Published 1977Visual Material -
2553
-
2554
Revised tariff and customs code of the Philippines. Republic Act no. 1937, effective July 1, 1957 [microform].
Published 1977Visual Material -
2555
-
2556
-
2557
-
2558
Customs tariff of the Philippine Islands, 1909; notes on tariff revision; customs tariff of 1905 [microform].
Published 1977Visual Material -
2559
-
2560