> As for your real question about modern books, it depends what kind
of book
> you're looking for - what level, how much detail.
>
Thanks for helpful information. References at any level covering
phonetic questions in light of reconstruction issues interest me.
My point of departure is looking at a table which e.g. , lists
p (plain) p' (glottalized) ph (aspirated) phonetically but writes
them *p *b *bh, respectively when setting up correspondences. So,
when PIE *b ([p']) becomes b in Skt., Av., OCS, etc., is one to
understand that it deglottalizes and voices. From your post I
guess some dispute the glottalized value and such a representation
merely tries to put forth two phonetic interpretations simultaneously,
i.e,, that *b is either [b] or [p'].
My language background is Romance so I will start trying to
outline the issues via work that focuses on Latin.