Schulmeister, D. (1971). Some basic questions on foreign trade planning. The Institute of National Planning.
Citazione stile Chigago Style (17a edizione)Schulmeister, Dieter. Some Basic Questions on Foreign Trade Planning. Cairo: The Institute of National Planning, 1971.
Citatione MLA (9a ed.)Schulmeister, Dieter. Some Basic Questions on Foreign Trade Planning. The Institute of National Planning, 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.