Society) 纽约市奥杜邦学会(英语:New York City Audubon) 纽约学生可持续性联盟(英语:New York Student Sustainability Coalition) 人口团体(英语:Population Connection) 人口与环境平衡(英语:Population-Environment
[2009-08-10]. (原始内容存档于2010-11-30). New Fuels Alliance. Letter to Mary D. Nichols, CARB Chairman (PDF). California Air Resources Board. 2008-10-23 [2009-06-07]
fire behaviour. Research Report No. 20 (PDF). Victoria Department of Sustainability and Environment. June 1983 [2009-06-26]. (原始内容存档 (PDF)于2007-09-21).