Traffic in opium
Subtitle: summary of answers to the opium questionnaire, 1921, supplemented by other relevant information at the disposal of the Advisory Committee on Traffic in Opium during its second session, April 19th-29th, 1922
Publisher: The International Anti-Opium Association
Published: 1922
Place of publication: Peking
Language: eng
Number of pages: 34
Subjects: Opium trade; Statistics
Notes: Cover title.