Gardner, Davie E. and Smith, Frank. Genealogical Research in England and Wales, Vol. 2. Bookcraft, Salt Lake City, Utah. 1967. pp. 12-21.
Jaussi, Laureen R. and Chaston, Gloria D. Fundamentals of Genealogical Research. Deseret Book, Salt Lake City, Utah. 1966. pp.37-60.
Wright, Norman E. and Pratt, David H. Genealogical Research Essentials. Bookcraft, Salt Lake City, Utah. 1967. pp. 123-144.