Παραπομπή σε μορφή APA (7η εκδ.)

Hansen, B. (1967). Long and short-term planning in underdeveloped countries. North-Holland Pub..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hansen, Bent. Long and Short-term Planning in Underdeveloped Countries. Amsterdam: North-Holland Pub., 1967.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hansen, Bent. Long and Short-term Planning in Underdeveloped Countries. North-Holland Pub., 1967.