ebrahim, m. k. s. (1970). problems and policies for the world markets of primay commodities: The case of tobacco. the institute of national planning.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)ebrahim, m. k. s. Problems and Policies for the World Markets of Primay Commodities: The Case of Tobacco. cairo: the institute of national planning, 1970.
MLA -ийн эшлэл (9 дэх хэвлэлт)ebrahim, m. k. s. Problems and Policies for the World Markets of Primay Commodities: The Case of Tobacco. the institute of national planning, 1970.