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Autore:Gary Nathan Calkins

Gary Nathan

Calkins XIX secolo/XX secolo biologo statunitense

  1. 1,0 1,1 International Plant Names Index
  2. 2,0 2,1 Progetto Gutenberg
  3. 3,0 3,1 author citation
  4. 4,0 4,1 American National Biography
  5. National Library of Australia
  6. 6,0 6,1 Harvard Index of Botanists