APA (7th ed.) Citation

Graham, G. G., & Primavesi, A. L. (1993). Roses of Great Britain and Ireland / G. G. Graham and A. L. Primavesi. Botanical Society of the British Isles.

Chicago Style (17th ed.) Citation

Graham, G. G., and A. L. Primavesi. Roses of Great Britain and Ireland / G. G. Graham and A. L. Primavesi. London: Botanical Society of the British Isles, 1993.

MLA (9th ed.) Citation

Graham, G. G., and A. L. Primavesi. Roses of Great Britain and Ireland / G. G. Graham and A. L. Primavesi. Botanical Society of the British Isles, 1993.

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