Παραπομπή APA
Twentieth Century Fund. (1975). Paying for energy: Report of the Twentieth Century Fund Task Force on the International Oil Crisis : background paper. New York: McGraw-Hill.
Παραπομπή Chicago StyleTwentieth Century Fund. Paying for Energy: Report of the Twentieth Century Fund Task Force On the International Oil Crisis : Background Paper. New York: McGraw-Hill, 1975.
Παραπομπή MLATwentieth Century Fund. Paying for Energy: Report of the Twentieth Century Fund Task Force On the International Oil Crisis : Background Paper. New York: McGraw-Hill, 1975.
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