APA (7th ed.) Citation

Berridge, V., & Edwards, G. (1981). Opium and the people: Opiate use in 19th-century England. Allen Lane.

Chicago Style (17th ed.) Citation

Berridge, Virginia, and Griffith Edwards. Opium and the People: Opiate Use in 19th-century England. London [u.a.]: Allen Lane, 1981.

MLA (8th ed.) Citation

Berridge, Virginia, and Griffith Edwards. Opium and the People: Opiate Use in 19th-century England. Allen Lane, 1981.

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