Dyfyniad APA

Butier, W. H., & Panigirtzoglou, N. (1999). Liquidity traps: How to avoid them and how to escape them. National Bureau of Economic Research.

Dyfyniad Arddull Chicago

Butier, Willem H., and Nikolaos Panigirtzoglou. Liquidity Traps: How to Avoid Them and How to Escape Them. Cambridge: National Bureau of Economic Research, 1999.

Dyfyniad MLA

Butier, Willem H., and Nikolaos Panigirtzoglou. Liquidity Traps: How to Avoid Them and How to Escape Them. National Bureau of Economic Research, 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.