Dyfyniad APA

Brookings Institution, ebrary, Inc, Romer, D., & Wolfers, J. (2009). Brookings papers on economic activity. Brookings Institution.

Dyfyniad Arddull Chicago

Brookings Institution, Inc ebrary, David Romer, and Justin Wolfers. Brookings Papers on Economic Activity. Washington, D.C.: Brookings Institution, 2009.

Dyfyniad MLA

Brookings Institution, et al. Brookings Papers on Economic Activity. Brookings Institution, 2009.

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