صلاحية (أحياء) (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "صلاحية (أحياء)" in Arabic language version.

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archive.org

bepress.com

works.bepress.com

darwinproject.ac.uk

  • "Letter 5145 – Darwin, C. R. to Wallace, A. R., 5 July (1866)". Darwin Correspondence Project. مؤرشف من الأصل في 2015-09-23. اطلع عليه بتاريخ 2010-01-12.
  • "Letter 5140 – Wallace, A. R. to Darwin, C. R., 2 July 1866". Darwin Correspondence Project. مؤرشف من الأصل في 2016-01-25. اطلع عليه بتاريخ 2010-01-12.
  • "Letter 5140 – Wallace, A. R. to Darwin, C. R., 2 July 1866". Darwin Correspondence Project. مؤرشف من الأصل في 2016-01-25. اطلع عليه بتاريخ 2010-01-12.
    "Letter 5145 – Darwin, C. R. to Wallace, A. R., 5 July (1866)". Darwin Correspondence Project. مؤرشف من الأصل في 2015-09-23. اطلع عليه بتاريخ 2010-01-12.
    ^ "Herbert Spencer in his Principles of Biology of 1864, vol. 1, p. 444, wrote: 'This survival of the fittest, which I have here sought to express in mechanical terms, is that which Mr. Darwin has called "natural selection", or the preservation of favoured races in the struggle for life.'" Maurice E. Stucke، Better Competition Advocacy، مؤرشف من الأصل في 2022-11-07، اطلع عليه بتاريخ 2007-08-29, citing HERBERT SPENCER, THE PRINCIPLES OF BIOLOGY 444 (Univ. Press of the Pac. 2002.)

web.archive.org

  • "Letter 5145 – Darwin, C. R. to Wallace, A. R., 5 July (1866)". Darwin Correspondence Project. مؤرشف من الأصل في 2015-09-23. اطلع عليه بتاريخ 2010-01-12.
  • Ewens، Warren J. (2003). Mathematical population genetics (ط. 2nd). New York: Springer. ص. 78–86. ISBN:978-0387201917. مؤرشف من الأصل في 4 أغسطس 2020. {{استشهاد بكتاب}}: تحقق من التاريخ في: |سنة= لا يطابق |تاريخ= (مساعدة)
  • "Letter 5140 – Wallace, A. R. to Darwin, C. R., 2 July 1866". Darwin Correspondence Project. مؤرشف من الأصل في 2016-01-25. اطلع عليه بتاريخ 2010-01-12.
  • "Letter 5140 – Wallace, A. R. to Darwin, C. R., 2 July 1866". Darwin Correspondence Project. مؤرشف من الأصل في 2016-01-25. اطلع عليه بتاريخ 2010-01-12.
    "Letter 5145 – Darwin, C. R. to Wallace, A. R., 5 July (1866)". Darwin Correspondence Project. مؤرشف من الأصل في 2015-09-23. اطلع عليه بتاريخ 2010-01-12.
    ^ "Herbert Spencer in his Principles of Biology of 1864, vol. 1, p. 444, wrote: 'This survival of the fittest, which I have here sought to express in mechanical terms, is that which Mr. Darwin has called "natural selection", or the preservation of favoured races in the struggle for life.'" Maurice E. Stucke، Better Competition Advocacy، مؤرشف من الأصل في 2022-11-07، اطلع عليه بتاريخ 2007-08-29, citing HERBERT SPENCER, THE PRINCIPLES OF BIOLOGY 444 (Univ. Press of the Pac. 2002.)