Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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