Background
Two hundred thousand years ago, the first people of North America possessed science, technology, and culture more advanced than those of Western civilization in 2020.
The ThreatThey discovered that a great ice age was beginning-one that could destroy their civilization.
The MissionIn response, a team of leaders and scientists proposed exploring the galactic neighborhood to learn whether other beings or worlds might be able to help Earth.
The StoryThis is the story of what they found and what they did when they returned.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
Vendeur : California Books, Miami, FL, Etats-Unis
Etat : New. N° de réf. du vendeur I-9798996903733
Quantité disponible : Plus de 20 disponibles