National Fire Protection Association, Illustrated Dictionary of Fire Service Terms, Jones & Bartlett Publishers, MA. USA 2006. https://books.google.com.kw/books?id=W0WIRa3Gl4QC& printsec=frontcover&source=gbs_ge_summary_r&cad=0# v=onepage&q&f=false, (Fr Srvc - Amer) {141}
NFPA 1500 Standard on Fire Department Occupational Safety and Health Program, 2007 ed. https://law.resource.org/pub/us/code/ibr/nfpa.1500 .2007.pdf, (Std: Fr Dept Occupn Sfty and Hlth Prog - Amer) {399 NFC}
NFPA 1994 Standard on Protective Ensembles for First Responders to CBRN Terrorism Incidents, 2007 ed. http://media.bmt.org/bmt_media/resources/39/NFPA19 94.pdf, (Std: Prot Ens for First Resp to CBRN Teror Incid - Amer) {438 NFC}