APA (7th ed.) Citation

Wilenski, R. H. (1950). Royal Portraits. Faber and Faber.

Chicago Style (17th ed.) Citation

Wilenski, R. H. Royal Portraits. Londres: Faber and Faber, 1950.

MLA (9th ed.) Citation

Wilenski, R. H. Royal Portraits. Faber and Faber, 1950.