Hansen, B. (1967). Long and short-term planning in underdeveloped countries. North-Holland Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHansen, Bent. Long and Short-term Planning in Underdeveloped Countries. Amsterdam: North-Holland Pub., 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHansen, Bent. Long and Short-term Planning in Underdeveloped Countries. North-Holland Pub., 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.