U.S. foreign trade
Subtitle: classification of customs districts and ports ; schedule D.
Edition: Jan. 1, 1978 ed.
Publisher: Dept. of Commerce, Bureau of the Census
Published: 1977
Place of publication: Washington
Language: eng
Subjects: Customs administration -- United States.; Ports of entry -- United States.
Notes: Public bulletin D-5.

Issued Dec. 1979.