Book is listed on LT but can't be added in Add Books

I am trying to add these four books to my LT catalogue, but I can't find any way to find them on the Add Books page - even via Overcat.

http://www.librarything.com/work/25264331
http://www.librarything.com/work/25315953
http://www.librarything.com/work/25264310
http://www.librarything.com/work/25316017

Is there any other way to do it which doesn't involve entering them manually again? Thanks.

1st, 3rd, and 4th are manual entry. Not sure about 2nd. Have you looked on worldcat to see what library might own the book and look for that library as a source? Otherwise, use Bowker Books in Print; but remember to fix the author names after you have added the titles.

If they are all forthcoming, you are probably stuck with manual entry.

>1 wandering_star:

The second was manual entry by one user, amazon.com (books) by the other.

Overcat only has books that are found in library searches. It does not include manual entry books or books found via Amazon.