APA

United States, . (1985). U.S. Customs Service: import specialists' duties and reviews of entry documentation. [Washington, D.C: .

Chicago

United States, . 1985. U.S. Customs Service: import specialists' duties and reviews of entry documentation. [Washington, D.C: .

Harvard

United States, . (1985). U.S. Customs Service: import specialists' duties and reviews of entry documentation. [Washington, D.C: .

MLA

United States, . U.S. Customs Service: import specialists' duties and reviews of entry documentation. [Washington, D.C: . 1985.