Sayan, Carl, ed.
Communication with extraterrestrial intelligence - Cambridge The MIT Press 1973 - 428 p.
0-262-19106-7
INTERSTELLAR COMMUNICATION
LIFE-ORIGIN
576.1 / C6
Communication with extraterrestrial intelligence - Cambridge The MIT Press 1973 - 428 p.
0-262-19106-7
INTERSTELLAR COMMUNICATION
LIFE-ORIGIN
576.1 / C6