Add sections to the bookbuilder: That 19th July in Spain in 1936 (Federazione dei Comunisti Anarchici)

 

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
Select
Title, author, date...
That 19th July in Spain in 1936
Source, notes...