The glass ark : the story of Biosphere 2 /Author: Gentry, Linnea,
Publisher: New York, N.Y., U.S.A. : Viking,
Date: c1991. This title can be found in 9 Iowa libraries.
The microbial worldAuthor: Stanier, Roger Y.
Publisher: Englewood Cliffs, N.J., Prentice-Hall
Date: [1970] This title can be found in 6 Iowa libraries.
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