APA (7th ed.) Citation

Smith, P. F., Bailey, S. H., Bailey, S., & Bailey, S. H. (1984). The modern english legal system. Sweet and Maxwell.

Chicago Style (17th ed.) Citation

Smith, Peter F., Stephen H. Bailey, S.H Bailey, and Stephen H. Bailey. The Modern English Legal System. London: Sweet and Maxwell, 1984.

MLA (8th ed.) Citation

Smith, Peter F., et al. The Modern English Legal System. Sweet and Maxwell, 1984.