An expert online guide to UK legal research is Sarah Carter, A Guide to the UK Legal System
The Law Library also has several books which may provide assistance in researching and citing UK law.
Walker & Walker's English Legal System (10th ed. 2008). Reference Office KD7100.W35x 2008. Useful background on the administration of justice, including the legal profession and types of courts; civil and criminal procedure; and relevant EU provisions.
Principles of the English Legal System (3rd ed. 1997). Reference Office KD661.S58 1997. This book provides an overview of the structure of the English legal system. This book explains how the English legal system operates and how rules and processes are affected by the social and economical environment. Additionally, a discussion of sources of law, the structure and processes of the civil and criminal courts, and the judiciary is provided. A separate chapter covering European Union sources of law and institutions is also included.
Banks on Using a Law Library (6th ed. 1994). Reference Office KE250.B35x 1994. This book provides essential information on both Canadian and English sources of law. Both primary and secondary sources of law are discussed. Illustrations and recommended citations are also provided.
Butterworths Legal Research Guide (1993). Reference Office KD392.H65 1993. This book provides suggested legal research techniques and methodologies for English legislative and case law as well as secondary sources. A separate chapter discussing European Union legal sources is also included.
Kerly's Law of Trade Marks and Trade Names by 
Wadlow on the Law of Passing-Off by