Is the ISBN number on a book different for each different version of the same book?

I am trying to buy The Seeds Of Time by John Wyndham online someplace, but I am looking for the version which has the cover illustrated by Spencer wilson. (the one with the cartoon spaceman on it) Is the ISBN number going to be different for each different version of the same book?





Thanks.|||without knowing for sure, yes. I'm pretty sure the isbn is specific for the copyrighted version of the book. when I look up a book by the isbn I always end up with the same version that I started with.|||Different editions or different publishers will have different ISBN numbers.|||Every book has a different ISBN #.|||Of course