UNITED NATIONS. (1978). GUIDE TO PRATICAL PROJECT APRAISAL: SOCIAL BENEFIT COST ANALYSIS IN DEVELOPING COUNTRIES. OXFORD UNIVERSITY PRESS.
芝加哥风格引文UNITED NATIONS. GUIDE TO PRATICAL PROJECT APRAISAL: SOCIAL BENEFIT COST ANALYSIS IN DEVELOPING COUNTRIES. DELHI: OXFORD UNIVERSITY PRESS, 1978.
MLA引文UNITED NATIONS. GUIDE TO PRATICAL PROJECT APRAISAL: SOCIAL BENEFIT COST ANALYSIS IN DEVELOPING COUNTRIES. OXFORD UNIVERSITY PRESS, 1978.
警告：这些引文格式不一定是100％准确.