APA Edition Citation

Pessoa, F., Costa, M. J., & Lancastre, M. J. d. (2002). The book of disquiet. Penguin Books.

Chicago Edition Citation

Pessoa, Fernando, Margaret Jull Costa, and Maria José de Lancastre. The Book of Disquiet. London: Penguin Books, 2002.

MLA Edition Citation

Pessoa, Fernando, et al. The Book of Disquiet. Penguin Books, 2002.