Dyfyniad APA

Yaari, R., Brand, H., Seward, J. D., Burke, A. D., Fleisher, A. S., Dougherty, J., & Tariot, P. N. (2011). When Laughing Is No Joking Matter. Physicians Postgraduate Press, Inc.

Dyfyniad Arddull Chicago

Yaari, Roy, Helle Brand, James D. Seward, Anna D. Burke, Adam S. Fleisher, Jan Dougherty, and Pierre N. Tariot. When Laughing Is No Joking Matter. Physicians Postgraduate Press, Inc, 2011.

Dyfyniad MLA

Yaari, Roy, et al. When Laughing Is No Joking Matter. Physicians Postgraduate Press, Inc, 2011.

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