Cita APA (7a ed.)

Wharton, E. (1974). The age of innocence. Penguin Books.

Cita Chicago Style (17a ed.)

Wharton, Edith. The Age of Innocence. London [etc.]: Penguin Books, 1974.

Cita MLA (9a ed.)

Wharton, Edith. The Age of Innocence. Penguin Books, 1974.