Can you make a book with Pages app. to transfer to iBook on the iPad?

I have a very old manual of Westinghouse Radio schematics (1936-1937).I have scanned the manual in pdf's and wanted to take certain models to put together as one "book" for my own reference. iBook sees each page as a book when I export to it.

What would be the best way to put them together so iBook sees one book with pages inside?