Sampling guide.
Publisher: U.S. Govt. Print. Off.
Published: 1938
Place of publication: Washington
Language: eng
Number of pages: 152
Subjects: Customs administration -- United States.
Notes: Includes references. Bibliography: p. 78-80.
At head of title: U.S. Treasury department. Bureau of customs.
On cover: Confidential--For use of customs officers only ...