(1994). Environmental science: Hazardous gas and hazardous waste. Commonwealth.
Chicago-čujuhus (17. p.)Environmental Science: Hazardous Gas and Hazardous Waste. New Delhi: Commonwealth, 1994.
MLA-čujuhus (9. p.)Environmental Science: Hazardous Gas and Hazardous Waste. Commonwealth, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.