Παραπομπή σε μορφή APA (7η εκδ.)

tinbergen, j. (1964). development planning: The sector phase with different gestation periods. the institute of national planning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

tinbergen, j. Development Planning: The Sector Phase with Different Gestation Periods. cairo: the institute of national planning, 1964.

Παραπομπή σε μορφή MLA (9th εκδ.)

tinbergen, j. Development Planning: The Sector Phase with Different Gestation Periods. the institute of national planning, 1964.