David Mort & Leona Siddall 
Sources of Non-official UK Statistics [PDF ebook] 

This title was first published in 2002: This volume gives details of nearly 1000 publications and services (including electronic publications) produced by trade associations, professional bodies, banks, consultants, employers’ federations, forecasting organizations and others, together with statistics appearing in trade journals and periodicals. Titles and services are listed alphabetically by publisher and each entry contains information, where available, on subject, content and source of statistics, as well as frequency and cost, and address, telephone and fax details for further information. This updated edition also includes details of internet sites and information on whether statistics are available on those sites.