Some of the items referenced in the pull-down menu list attached to the REFERENCES tab above, each with a direct purchase link to Amazon, are various published works referred to through-out this website. The form a portion of the reference material used in researching and/or exploring the various topics introduced or discussed here.

Other items in the REFERENCE menu list refer to other websites where information was researched or that are suggested as additional source material in which you might be interested.

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