Add sections to the bookbuilder: 50 years since the Coup d'état in Chile (Camilo Escalona)

 

With complex structures, e.g., a chapter with subsections, selecting only the chapter is likely to select only the chapter's title, so probably you want to select the chapter and all its subsections.

The text structure is shown below.

 
Section
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Title, author, date...
50 years since the Coup d'état in Chile
Source, notes...