Dyfyniad APA
United States. Dept. of Homeland Security, United States. Government Accountability Office, ebrary, Inc, & Merganthal, P. B. (2009). National emergency responses. Nova Science Publishers.
Dyfyniad Arddull Chicago
United States. Dept. of Homeland Security, United States. Government Accountability Office, Inc ebrary, and Paul B. Merganthal. National Emergency Responses. New York: Nova Science Publishers, 2009.
Dyfyniad MLA
United States. Dept. of Homeland Security, et al. National Emergency Responses. Nova Science Publishers, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.