Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.