APA (7th ed.) Citation

Sutton, D. (1963). An unpublished sketch by Renoir.

Chicago Style (17th ed.) Citation

Sutton, Denys. An Unpublished Sketch by Renoir. 1963.

MLA (9th ed.) Citation

Sutton, Denys. An Unpublished Sketch by Renoir. 1963.

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