APA
Copeland M. A., National Bureau of Economic Research (New York) & Roberts G. B. (. (1961). Trends in government financing. Princeton: Princeton University Press.
Chicago
Copeland Morris A, National Bureau of Economic Research (New York) and Roberts George B (Chairman). 1961. Trends in government financing. Princeton: Princeton University Press.
Harvard
Copeland M. A., National Bureau of Economic Research (New York) and Roberts G. B. (. (1961). Trends in government financing. Princeton: Princeton University Press.
MLA
Copeland Morris A, National Bureau of Economic Research (New York) and Roberts George B (Chairman). Trends in government financing. Princeton: Princeton University Press. 1961.