Any good high street book shop should sell it, I have loaned my copy to another pilot who I am sure will appreciate it and I will have to read it again when it come back!
I keep laughing thinking about it especially the bit about his mate who comes back from his qualifying cross country to convert his S.A. PPl to a UK one and infringes every bit of airspace possible, stays on the same frequency the whole flight and blissfully unaware of the chaos he causes in doing so.
you just have to read it, it is a modern classic!
Should be study materials in schools for English O level (well that may be going a bit far but its good)