Have a look on amazon for these or you should be able to order from WHSmith, Waterstones, Ottakars or Dillons if they haven't got them in stock with the ISBN numbers and details.
Books for identification of prints include;
Animals: tracks, trails and signs. ISBN 978-0-7537-0955-9 Hamlyn books by ; R.W.Brown, M.J.Lawrence and J.Pope. £12.99.
Animal Tracks and Signs. ISBN 0-19-850796-8 Oxford University Press by; Preben Bang and Preben Dahlstrom
Kit.
Look out for a fresnel lens with a ruler on it. They can be used for looking at finer detail of a print and giving the scale of the print. Places like Waterstones have them quite frequently or you could
get one here
Tracking sticks can be made by the individual. All you need are some castration rings, a ferrule and some time.
Green light torches for night tracking along the lines of the Inova X5. can be
purchased here