National Emergency Management System .28NIMS.29 Oklahoma Office of Homeland Security

^ oklahoma office of homeland security - nims . www.ok.gov. retrieved 2017-05-04. 
^ ics , nims - oklahoma state department of health . ok.gov. retrieved 2017-04-27.  horizontal tab character in |title= @ position 16 (help)
^ oklahoma office of homeland security - nims . www.ok.gov. retrieved 2017-04-27.