Usually when I come across books marked "General" it is by way of a sticker as General was only the distributor to Canada, not the printer (i.e., remove the sticker and the book has no difference to any sold in the UK; in fact I will be indexing one shortly. This is the first time I have actually encountered a book that has had General act as publisher, to the point of replacing the original UK with their own imprint and ISBN. (this comment is from another edition of this book)