APA (7th ed.) Citation

Heath, D., & Boreham, J. (1999). Introducing Romanticism. Icon Books [u.a.].

Chicago Style (17th ed.) Citation

Heath, Duncan, and Judy Boreham. Introducing Romanticism. Cambridge: Icon Books [u.a.], 1999.

MLA (9th ed.) Citation

Heath, Duncan, and Judy Boreham. Introducing Romanticism. Icon Books [u.a.], 1999.