APA (7th ed.) Citation

Cooper, D. (1991). Light up your life: Discover your true purpose and potential. Judy Piatkus.

Chicago Style (17th ed.) Citation

Cooper, Diana. Light Up Your Life: Discover Your True Purpose and Potential. London, UK: Judy Piatkus, 1991.

MLA (9th ed.) Citation

Cooper, Diana. Light Up Your Life: Discover Your True Purpose and Potential. Judy Piatkus, 1991.

Warning: These citations may not always be 100% accurate.