Παραπομπή σε μορφή APA (7η εκδ.)

sobhy, h. m. (1980). regional planning as a tool of strengthening the national economy. the institute of national planning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

sobhy, hoda m. Regional Planning as a Tool of Strengthening the National Economy. cairo: the institute of national planning, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

sobhy, hoda m. Regional Planning as a Tool of Strengthening the National Economy. the institute of national planning, 1980.