APA (7th ed.) Citation

Goldsmith, M. L. (1939). The trail of opium: The eleventh plague. R. Hale, limited.

Chicago Style (17th ed.) Citation

Goldsmith, Margaret L. The Trail of Opium: The Eleventh Plague. London: R. Hale, limited, 1939.

MLA (8th ed.) Citation

Goldsmith, Margaret L. The Trail of Opium: The Eleventh Plague. R. Hale, limited, 1939.

Warning: These citations may not always be 100% accurate.