I don't have a copy of the autobiography but looking through the Nottingham Football Post on the British Newspaper Archive, it's clearly a home match at Meadow Lane (the old County Stand in the background) and in winter (bare trees to the right), and a candidate would be the match v Peterborough on 30 Jan 71. The players' kits as seen in the photos on the front page and page 8 look very much like those in the posted picture, and one on page 8 could have been taken in the same attack and shows what appears to look very much like the referee in the posted picture. If so, according to the report we are looking at John Rice (Leyland, Lancs) but as I never saw him I've no way of knowing if that's right. No doubt someone will be able to confirm or refute this.