History of the Opium Problem: The Assault on the East, Ca. ...
Hans Derks
... pamphlet combines, as usual in this kind of writings, a bit truth with many suspicions. It is still available on the Internet: www.fourwinds10.com. 34 whc. newyork.chamberofcommerce.opium.import.export.pricedata.xls (read-only) - OpenOffice.