Found 2 books 
[en] Global Catastrophic Risks Oxford University Press, Oxford University Press, USA
[en] The Great Silence, Science and Philosophy of Fermi's Paradox Oxford University Press, Incorporated
Found 2 books
[en] Global Catastrophic Risks Oxford University Press, Oxford University Press, USA
[en] The Great Silence, Science and Philosophy of Fermi's Paradox Oxford University Press, Incorporated