Add sections to the bookbuilder: Việt Nam 1920-1945 (Ngô Văn)


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.

Title, author, date...
Việt Nam 1920-1945
Source, notes...