1. Steven J. Dick, “Cosmotheology,” in Dick, editor, Many Worlds, 205.
2. Quoted in MacGowan and Ordway, 359.
3. John Billingham, “Scientific and Cultural Aspects of SETI,” paper prepared as background material for a meeting of the International Academy of Astronautics SETI Committee in 1994 (the meeting was canceled).
4. Michael A.G. Michaud, “On Communicating with Aliens” (book essay on five works about SETI), Foreign Service Journal, Vol. 51, Number 6 (June 1974), 33–34, 40.
5. Stephen E. Doyle, “Cultural and Institutional Aspects” (for roundtable on SETI and Society), paper presented at the 1997 International Astronautical Congress (IAA-97-IAA.7.1.04).