APA (7th ed.) Citation

Coombs, R. E. (1981). Violets: The history and cultivation of scented violets. Croom Helm.

Chicago Style (17th ed.) Citation

Coombs, Roy E. Violets: The History and Cultivation of Scented Violets. London: Croom Helm, 1981.

MLA (9th ed.) Citation

Coombs, Roy E. Violets: The History and Cultivation of Scented Violets. Croom Helm, 1981.

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