APA (7th ed.) Citation

Johnston, H., & O'Keeffe, G. (2016). Georgia O'Keeffe. Tate Publishing.

Chicago Style (17th ed.) Citation

Johnston, Hannah, and Georgia O'Keeffe. Georgia O'Keeffe. London: Tate Publishing, 2016.

MLA (9th ed.) Citation

Johnston, Hannah, and Georgia O'Keeffe. Georgia O'Keeffe. Tate Publishing, 2016.