23 JUN 2012 by ideonexus

 Education: Intellectual, Moral, and Physical

Books, Brochures, and Chapters>Book:  Spencer , Herbert (1865), Education: Intellectual, Moral, and Physical, Retrieved on 2012-06-23
  • Source Material [books.google.com]
    •  1  
    23 JUN 2012 by ideonexus

     The Principles of biology

    Books, Brochures, and Chapters>Book:  Spencer , Herbert (1898), The Principles of biology, Retrieved on 2012-06-23
  • Source Material [books.google.com]
    •  1