APA (7th ed.) Citation

Klaber, D. (1976). Violets of the United States. A. S. Barnes.

Chicago Style (17th ed.) Citation

Klaber, Doretta. Violets of the United States. South Brunswick [N.J.]: A. S. Barnes, 1976.

MLA (9th ed.) Citation

Klaber, Doretta. Violets of the United States. A. S. Barnes, 1976.