APA (7th ed.) Citation

Frank, A., Frank, O., & Pressler, M. (1997). The diary of a young girl. Penguin.

Chicago Style (17th ed.) Citation

Frank, Anne, Otto Frank, and Mirjam Pressler. The Diary of a Young Girl. London: Penguin, 1997.

MLA (8th ed.) Citation

Frank, Anne, et al. The Diary of a Young Girl. Penguin, 1997.