The Tragedy of the Commons

Bibtex entry :

@article { Hardin-Science68,
    author = { Hardin, Garret },
    title = { The Tragedy of the Commons },
    journal = { Science },
    year = { 1968 },
    volume = { 162 },
    number = { 3859 },
    pages = { 1243-1248 },
    month = { December },
    url = { http://www.sciencemag.org/cgi/content/full/162/3859/1243 },
}