Author: CLEMENT HAL
Title: THE NITROGEN FIX
Description: Ace, 1981. 1st printing. The family is allied with an alien, an octopus-like being who can survive in the new atmosphere. Humans must live in shelters with oxygen-generating plants, or use suitable breathing equipment. Paperback. ISBN: 044158117X. near fine paperback, David Mattingly cover.

Keywords: 044158117X