Citations:Prox


 * 1964 —, , Gollancz, London (2007), p. 78; ISBN 978-0-57507-997-7
 * In four years on Prox I learned a lot. Six years in transit, four in residence. The Proxers are going to invade Earth.
 * 1964 —, , Gollancz, London (2007), p. 78; ISBN 978-0-57507-997-7
 * Do you care to see color slides of my visit to the Prox system?