APA (7th ed.) Citation

Yourcenar, M. (2003). Opus Nigrum. Suma de Letras.

Chicago Style (17th ed.) Citation

Yourcenar, Marguerite. Opus Nigrum. España: Suma de Letras, 2003.

MLA (9th ed.) Citation

Yourcenar, Marguerite. Opus Nigrum. Suma de Letras, 2003.

Warning: These citations may not always be 100% accurate.