APA

Frank A., Frank O. H., Pressler M. & Massotty S. (2020). The diary of a young girl. London: Penguin Books.

Chicago

Frank A, Frank O H, Pressler M and Massotty S. 2020. The diary of a young girl. London: Penguin Books.

Harvard

Frank A., Frank O. H., Pressler M. and Massotty S. (2020). The diary of a young girl. London: Penguin Books.

MLA

Frank A, Frank O H, Pressler M and Massotty S. The diary of a young girl. London: Penguin Books. 2020.