APA-viite (7. p.)

Singapore. Customs and Excise. Annual report of the Customs and Excise, for the year. To be purchased from Govt. Publications Bureau.

Chicago-viite (17. p.)

Singapore. Customs and Excise. Annual Report of the Customs and Excise, for the Year. Singapore: To be purchased from Govt. Publications Bureau.

MLA-viite (8. p.)

Singapore. Customs and Excise. Annual Report of the Customs and Excise, for the Year. To be purchased from Govt. Publications Bureau.

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