Preparatory work for a conference to consider the possibility of limiting and controlling the cultivation of the opium poppy and the production of raw opium : raw opium statistics concerning world production, use, stocks, exports of producing countries and seizures, Geneva, May 15th, 1939.
标题Preparatory work for a conference to consider the possibility of limiting and controlling the cultivation of the opium poppy and the production of raw opium : raw opium statistics concerning world production, use, stocks, exports of producing countries and seizures, Geneva, May 15th, 1939.
