APA (7th ed.) Citation

Mullingan, J. (1988). The personal management handbook: How to make the most of your potential. Sphere Books Ltd.

Chicago Style (17th ed.) Citation

Mullingan, John. The Personal Management Handbook: How to Make the Most of Your Potential. London: Sphere Books Ltd, 1988.

MLA (9th ed.) Citation

Mullingan, John. The Personal Management Handbook: How to Make the Most of Your Potential. Sphere Books Ltd, 1988.