Schulmeister, D. (1971). Some basic questions on foreign trade planning. The Institute of National Planning.
Chicago-referens (17:e uppl.)Schulmeister, Dieter. Some Basic Questions on Foreign Trade Planning. Cairo: The Institute of National Planning, 1971.
MLA-referens (9:e uppl.)Schulmeister, Dieter. Some Basic Questions on Foreign Trade Planning. The Institute of National Planning, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.