APA (7th ed.) Citation

Armstrong, M. (1994). How to be an even better manager (4th ed.). Kogan Page.

Chicago Style (17th ed.) Citation

Armstrong, Michael. How to Be an Even Better Manager. 4th ed. London: Kogan Page, 1994.

MLA (8th ed.) Citation

Armstrong, Michael. How to Be an Even Better Manager. 4th ed. Kogan Page, 1994.