Butier, W. H., & Panigirtzoglou, N. (1999). Liquidity traps: How to avoid them and how to escape them. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Butier, Willem H., und Nikolaos Panigirtzoglou. Liquidity Traps: How to Avoid Them and How to Escape Them. Cambridge: National Bureau of Economic Research, 1999.
MLA-Zitierstil (9. Ausg.)Butier, Willem H., und Nikolaos Panigirtzoglou. Liquidity Traps: How to Avoid Them and How to Escape Them. National Bureau of Economic Research, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.