APA (7th ed.) Citation

Engen, E. M., & Hubbard, R. G. (2004). Federal government debts and interest rates. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Engen, Eric M., and R. Glenn Hubbard. Federal Government Debts and Interest Rates. Cambridge, Mass: National Bureau of Economic Research, 2004.

MLA (9th ed.) Citation

Engen, Eric M., and R. Glenn Hubbard. Federal Government Debts and Interest Rates. National Bureau of Economic Research, 2004.