History of the opium problem

MLA

Derks, Hans. History of the Opium Problem : the Assault On the East, Ca. 1600-1950. Leiden: Brill, 2012.

APA

Derks, H. (2012). History of the opium problem : the assault on the East, ca. 1600-1950. Leiden: Brill.

Chicago

Derks, Hans, History of the Opium Problem: The Assault On the East, Ca. 1600-1950. Leiden: Brill, 2012.