(1970). Economics. McGraw-Hill.
Chicago Style (17th ed.) CitationEconomics. New York: McGraw-Hill, 1970.
MLA (9th ed.) CitationEconomics. McGraw-Hill, 1970.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.
(1970). Economics. McGraw-Hill.
Chicago Style (17th ed.) CitationEconomics. New York: McGraw-Hill, 1970.
MLA (9th ed.) CitationEconomics. McGraw-Hill, 1970.