APA (7th ed.) Citation

Osman, C., & McMullen, J. (1996). Butterworths employment law guide (2nd ed.). Butterworths.

Chicago Style (17th ed.) Citation

Osman, Christopher, and John McMullen. Butterworths Employment Law Guide. 2nd ed. London [etc.]: Butterworths, 1996.

MLA (9th ed.) Citation

Osman, Christopher, and John McMullen. Butterworths Employment Law Guide. 2nd ed. Butterworths, 1996.