Are these books all editions of the same book?

[Sarah (is clearing her shelves)]

Hi all, I believe that this book

http://www.goodreads.com/book/show/13...

and this book

http://www.goodreads.com/book/show/13...

and this book

http://www.goodreads.com/book/show/14...

are all editions of the same book despite the slight variations in title. I have read the first book and when the second book was suggested to me by GR I read the summary and thought "Hey, that's the same as one I've already read." and started investigating, that's when I found the third book that appears to be the same too. If they are all the same I will be happy to combine. Thanks for your help.

[Vicky]

The first and third are definitely the same (I added the subtitle to the third as it was on WorldCat).

The second one looks to me like a reprint with a slightly different subtitle, but I can't find anything to suggest it's not the same as the others.

[Sarah (is clearing her shelves)]

Thanks Vicky, I'll go combine them now.