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Providing an overview of the future research challenges for economists and social scientists concern... more
change of consciousness and a new spirituality, we may. Authors Judy McAllister, Erik van Praag, and Jan Paul van Soest bring...... more
reflects the changes and growth in ruminant nutrition and related ecology since 1982. Among the subjects Peter J. Van Soest...... more
Phylum porifera is an ecologically and economically important group of marine invertebrates, current... more
This is a truly interactive multimedia CD-ROM on the 337 species of sponges recorded in the coastal ... more