A history of atmospheric CO b2 and its effects on plants, animals, and ecosystems [electronic resource] / James R. Ehleringer, Thure E. Cerling, and M. Denise Dearing, editors.
Water in the universe [electronic resource] / Arnold Hanslmeier.
Weird astronomy [electronic resource] : tales of unusual, bizarre, and
other hard to explain observations / Seargent, David A.J.
Choosing and using a refracting telescope [electronic resource] / Neil English.
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