This book has achieved international recognition as a reference tool and a "one-stop" daily information source. This new edition features many topics, and is in
From its first edition the purpose of Walford has been to identify and evaluate the widest possible range of reference materials. No rigid definition of referen
This is a shortened version of the three volume Walford's Guide to Reference Material, 5th edition: Volume 1, Science and Technology (1989), Volume 2, Social an