Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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