APA (7th ed.) Citation

(1840). British opium trade with China: (from the Leeds Mercury, of September 7th, 1839). [publisher not identified].

Chicago Style (17th ed.) Citation

British Opium Trade with China: (from the Leeds Mercury, of September 7th, 1839). [Place of publication not identified]: [publisher not identified], 1840.

MLA (8th ed.) Citation

British Opium Trade with China: (from the Leeds Mercury, of September 7th, 1839). [publisher not identified], 1840.