APA (7th ed.) Citation

Siren, O. (1920). Essentials in art. John Lane.

Chicago Style (17th ed.) Citation

Siren, Osvald. Essentials in Art. New YOrk: John Lane, 1920.

MLA (9th ed.) Citation

Siren, Osvald. Essentials in Art. John Lane, 1920.

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