Cita APA (7th ed.)
Coe, D. T., Helpman, E., & Hoffmaister, A. W. (2008). International R&D spillovers and institutions. International Monetary Fund.
Cita Chicago (17th ed.)
Coe, David T., Elhanan Helpman, i Alexander W. Hoffmaister. International R&D Spillovers and Institutions. [Washington, District of Columbia]: International Monetary Fund, 2008.
Cita MLA (9th ed.)
Coe, David T., et al. International R&D Spillovers and Institutions. International Monetary Fund, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.