Katherine Esau (3 April 1898-4 June 1997)

• George Ledyard Stebbins ^[1]
  1. [1] University of California, Davis
• Localización: Proceedings of the American Philosophical Society: Held at Philadelphia for Promoting Useful Knowledge, ISSN 0003-049X, Vol. 143, Nº. 4 (December), 1999, págs. 664-672
• Idioma: inglés
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