APA (7th ed.) Citation

Leigh, A. (1995). 20 ways to manage better (2nd ed.). Institute of Personnel and Development.

Chicago Style (17th ed.) Citation

Leigh, Andrew. 20 Ways to Manage Better. 2nd ed. London: Institute of Personnel and Development, 1995.

MLA (9th ed.) Citation

Leigh, Andrew. 20 Ways to Manage Better. 2nd ed. Institute of Personnel and Development, 1995.