APA (7th ed.) Citation

The Royal Horticultural Society. (2003). The Royal Horticultural Society encyclopedia of gardening. DK.

Chicago Style (17th ed.) Citation

The Royal Horticultural Society. The Royal Horticultural Society Encyclopedia of Gardening. London New York: DK, 2003.

MLA (9th ed.) Citation

The Royal Horticultural Society. The Royal Horticultural Society Encyclopedia of Gardening. DK, 2003.

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