APA (7e ed.) Bronvermelding

Mitchell, T., & Dudley, A. (2002). Acne: The 'at your fingertips' guide. Class.

Chicago (17e ed.) Bronvermelding

Mitchell, Tim, en Alison Dudley. Acne: The 'at Your Fingertips' Guide. London: Class, 2002.

MLA (9e ed.) Bronvermelding

Mitchell, Tim, en Alison Dudley. Acne: The 'at Your Fingertips' Guide. Class, 2002.