Helpman, E. (1994). North-South RandD Spillovers. International Monetary Fund.
Chicago Style (17th ed.) CitationHelpman, Elhanan. North-South RandD Spillovers. Washington, D.C: International Monetary Fund, 1994.
MLA (9th ed.) CitationHelpman, Elhanan. North-South RandD Spillovers. International Monetary Fund, 1994.
Warning: These citations may not always be 100% accurate.