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Segal 2014 and Segal 2003

I'm not sure why two different editions of this book are being cited, so I have preserved the distinction. Maybe someone who knows better would prefer to consolidate them. HTH HAND — Phil | Talk 16:45, 17 May 2018 (UTC) reply

Hi, Phil There is a major difference between the two editions. The 2014 edition, is almost a rewrite. scope_creep ( talk) 17:17, 17 May 2018 (UTC) reply