What's the Name of That Book??? discussion

Ok I'm not sure I've put this in the right section, but I'm trying to locate an audiobook version of a particular adaptation of The Railway Children that I had as a kid and can't find it on anything.

I believe it was the Puffin Classics version with a white background on the tape cassette cover, it wasn't a dramatisation but it was abridged. I really want to listen to it!