Central Bank of the Philippines. International Operations Sector. Current Imports & Commodity Classification Office. (1975). Revised Central Bank commodity classification manual: As of Oct. 1, 1975. CBP.
Lua i Stíl Chicago (17ú heag.)Central Bank of the Philippines. International Operations Sector. Current Imports & Commodity Classification Office. Revised Central Bank Commodity Classification Manual: As of Oct. 1, 1975. [Manila]: CBP, 1975.
Lua MLA (9ú heag.)Central Bank of the Philippines. International Operations Sector. Current Imports & Commodity Classification Office. Revised Central Bank Commodity Classification Manual: As of Oct. 1, 1975. CBP, 1975.
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