Berridge, V., & Edwards, G. (1981). Opium and the people: Opiate use in 19th-century England. Allen Lane.
Chicago Style (17th ed.) CitationBerridge, Virginia, and Griffith Edwards. Opium and the People: Opiate Use in 19th-century England. London [u.a.]: Allen Lane, 1981.
MLA (9th ed.) CitationBerridge, 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.