APA (7e ed.) Bronvermelding

Mitchell, T., & Penzer, R. (2005). Psoriasis (2nd ed.). Class.

Chicago (17e ed.) Bronvermelding

Mitchell, Tim, en Rebecca Penzer. Psoriasis. 2nd ed. London: Class, 2005.

MLA (9e ed.) Bronvermelding

Mitchell, Tim, en Rebecca Penzer. Psoriasis. 2nd ed. Class, 2005.