How to add a book in my collection

Hello,

I am trying to add this book/work in my collection:
https://www.librarything.com/work/27095033/summary

When clicking on "Add to your books", nothing is found. I am wondering how the book has been added by 3 LibraryThing members.
Also, I would like to add the ISBN of the hardcover edition. The information is missing.

I could create a new entry manually but do not want to make a duplicate...

If someone could help me, that would be very nice.

Thank you very much !

The four people who have entered that book seem to have used manual entry, so you will probably need to do that, too.

If you enter it manually and it doesn't autocombine, we can combine it. Not a problem.

Neither Amazon nor Worldcat gives an ISBN. It is also possible that it doesn't have one. It is apparently only available directly from the author, and if he has paid for an ISBN, he isn't listing it on his site.

>2 MarthaJeanne: OK, thank you for the reply. I will do in manually.

I directly bought the book to the author (hardcover version) and I have the ISBNs for all the versions.

>2 MarthaJeanne: just added it manually it seems already merged ;-)

Thank you !