APA引文
Coe, D. T., Helpman, E., & Hoffmaister, A. W. (2008). International R&D spillovers and institutions. International Monetary Fund.
Chicago Style (17th ed.) Citation
Coe, David T., Elhanan Helpman, and Alexander W. Hoffmaister. International R&D Spillovers and Institutions. [Washington, District of Columbia]: International Monetary Fund, 2008.
MLA引文
Coe, David T., et al. International R&D Spillovers and Institutions. International Monetary Fund, 2008.
警告:這些引文格式不一定是100%准確.