(1990). Chemical emergency preparedness and prevention technical assistance bulletin: New York, New York : El Paso County, Colorado : Alexandria, Virginia : State of Maine.
Citazione stile Chigago Style (17a edizione)Chemical Emergency Preparedness and Prevention Technical Assistance Bulletin: New York, New York : El Paso County, Colorado : Alexandria, Virginia : State of Maine. 1990.
Citatione MLA (9a ed.)Chemical Emergency Preparedness and Prevention Technical Assistance Bulletin: New York, New York : El Paso County, Colorado : Alexandria, Virginia : State of Maine. 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.