United States. Bureau of Customs. (1944). Customs Manual, Prescribed for Instruction and Guidance of Customs Officers, Effective July 1, 1943, Substitute Pages Containing Corrections, First Revision, June 1944. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Customs. Customs Manual, Prescribed for Instruction and Guidance of Customs Officers, Effective July 1, 1943, Substitute Pages Containing Corrections, First Revision, June 1944. [Washington]: [s.n.], 1944.
MLA (9th ed.) CitationUnited States. Bureau of Customs. Customs Manual, Prescribed for Instruction and Guidance of Customs Officers, Effective July 1, 1943, Substitute Pages Containing Corrections, First Revision, June 1944. [s.n.], 1944.
Warning: These citations may not always be 100% accurate.