Brown, L. R. (2009). Plan B 4.0: Mobilizing to Save Civilization (Substantially Revised). New York: W. W. Norton.
Trích dẫn kiểu ChicagoBrown, Lester R. Plan B 4.0: Mobilizing to Save Civilization (Substantially Revised). New York: W. W. Norton, 2009.
MLA CitationBrown, Lester R. Plan B 4.0: Mobilizing to Save Civilization (Substantially Revised). New York: W. W. Norton, 2009.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.