David A Campbell: 16 books
Sense of Wonder: A Century of Science Fiction
A Century of Science Fiction
Language: English
Release Date: December 20, 2011
A survey of the last 100 years of science fiction, with representative stories and illuminating essays by the top writers, poets, and scholars, from Edgar Rice Burroughs and Samuel Butler to Robert A. Heinlein and and Jack Vance, from E.E. "Doc" Smith and Clifford D. Simak to Ted Chiang and Charles Stross-- and everyone in between. More than one million words of classic fiction and essays!
Managing soil health for sustainable agriculture Volume 2
Monitoring and management
Language: English
Release Date: August 6, 2018
There has been growing concern that both intensive agriculture in the developed world and rapid expansion of crop cultivation in developing countries is damaging the health of soils which are the foundation of farming. At the same time we are discovering much more about how complex soils are as living...
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