tinbergen, j. (1964). development planning: The sector phase with different gestation periods. the institute of national planning.
Chicago-referens (17:e uppl.)tinbergen, j. Development Planning: The Sector Phase with Different Gestation Periods. cairo: the institute of national planning, 1964.
MLA-referens (9:e uppl.)tinbergen, j. Development Planning: The Sector Phase with Different Gestation Periods. the institute of national planning, 1964.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.