Earth at Risk is a 5-book series with 5 primary works first released in 1991 with contributions by Karen Barss, Rebecca Stefoff, Laura Tangley, Edward Edelson, and Richard Amdur.
1992 • 135 pages
1991 • 116 pages
1992 • 118 pages
1993 • 110 pages
1991 • 127 pages