Gaya APA

York, K, J., Grey, G, L. (1989). Hazardous materials/waste handling for the emergency responder. (1989). : New York : Fire Engineering,.

Gaya MLA

York, Kenneth, J.., Grey, Gerald, L.. "Hazardous materials/waste handling for the emergency responder.". 1989 : New York : Fire Engineering,, 1989. Text.