"29th edition (first reprint) in this format Nov. 2019"
I believe this means that this is the 29th print of this ISBN, and that the text is HP1-SPA-iv-V71.
Because subsequent prints say:
"29th edition in this format Nov. 2019", I believe that despite saying "first reprint", they are still referring to this book. So will treat this as print 1.
Editions around this time suddenly have a weird qualification:
Twenty-ninth edition in this format: November 2019, fourth reprint: November 2020
Revised and corrected edition.
I interpret this is as the 4th print of this ISBN with the HP1-SPA-iv-V71 text. For this ISBN, that would make it the 32rd print. (1:29, 2:30, 3:31, 4:32).