1970s, aliens (1)
1970s, sf (1)
1978, science fiction (1)
20th century, hard sf, science fiction (1)
alien artifacts, science fiction (1)
aliens, hard sf (1)
aliens, hard sf, science fiction (1)
fiction, first contact, science fiction (1)
fiction, hard sf (1)
fiction, sci-fi (1)
fiction, science fiction (1)
first contact, hard sf (1)
first contact, hard sf, science fiction (1)
first contact, novel (1)
first contact, space (1)
giants, --children (1)
hard sf, science fiction (1)
hard sf, sf (1)
