APA (7th ed.) Citation

Johnson, J., & Ketchum, W. C. (1983). American folk art of the twentieth century. Rizzoli.

Chicago Style (17th ed.) Citation

Johnson, Jay, and William C. Ketchum. American Folk Art of the Twentieth Century. New York: Rizzoli, 1983.

MLA (9th ed.) Citation

Johnson, Jay, and William C. Ketchum. American Folk Art of the Twentieth Century. Rizzoli, 1983.