LIBROS DEL AUTOR: william m litchman

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  • A Cooperative Method of Learning Logic and Analysis in Genealogy
    William M Litchman
    While you may not have had the advantage of scientific training in your life, the skills of logical and analytical thinking so basic to science and to genealogy can be yours. In a lifetime of teaching, the author has found ways to help others build the skills needed to provide believable proof for conclusions based only on indirect and limited evidence. These skills are accessi...
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