I've had a book like this, again dealing with emergency vehicles and with a mix of Bruder and Playmobil and no acknowledgement to Playmobil. I've actually just wrapped it up for my great nephew's birthday. The Playmobil pictures are attached.
There are a number of similar books in a local newsagent's which I'll have a look at to answer your question about lorries and tractors. (I think I've looked already and it's the same situation, but I'll check again.)
Strangely enough, although the fire engine uses Bruder parts, they have never made one like this. They have produced turntable ladders and a fire brigade crane on MAN and Volvo chassis, a Unimog GW unit and, more recently a Sprinter with a turntable ladder, but not the one shown in your book, the book I had and in another Usborne book.
They have another book which features the fire engine in more detail.
