I found the answer to this question at the Library. Quite a few libraries around the world have 'Notes on Some Sinhalese Families'....published by 2 different companies in Sri Lanka. I have never seen the book 'Some Sinhalese Families' .....but it looks like this is the same book...... Inter library loan is the way people can borrow this book. The system i think is called Worldnet or networld ....something like that, accessed through libraries. They will deliver (loan) to you through libraries that partner with them anywhere in the world.