by Herberi J. Klausmeier | Patricia S. Allen.
by F. E. Cunningam | .
by Kari Maramorosch | K.E. Sherman.
by J. E. Adams | .
by G. H. Ahlgren | .
by R. Bradfield | .
by Sami Ahmad | .
by J. W. Bennett | .
by R. J. Haynes | .
by R. J. Cole | .
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