APA (7th ed.) Citation

Royal Horticultural Society (Great Britain). (2004). RHS good plant guide. Dorling Kindersley.

Chicago Style (17th ed.) Citation

Royal Horticultural Society (Great Britain). RHS Good Plant Guide. London: Dorling Kindersley, 2004.

MLA (9th ed.) Citation

Royal Horticultural Society (Great Britain). RHS Good Plant Guide. Dorling Kindersley, 2004.

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