APA (7th ed.) Citation

Sri Lanka Customs Department. (1967). Ceylon Customs returns 1967 April. Sri Lanka Customs Department.

Chicago Style (17th ed.) Citation

Sri Lanka Customs Department. Ceylon Customs Returns 1967 April. Colombo: Sri Lanka Customs Department, 1967.

MLA (9th ed.) Citation

Sri Lanka Customs Department. Ceylon Customs Returns 1967 April. Sri Lanka Customs Department, 1967.

Warning: These citations may not always be 100% accurate.