APA (7th ed.) Citation

Spence, I. (2003). Royal Horticultural Society garden plants and flowers. Dorling Kindersley.

Chicago Style (17th ed.) Citation

Spence, Ian. Royal Horticultural Society Garden Plants and Flowers. London: Dorling Kindersley, 2003.

MLA (8th ed.) Citation

Spence, Ian. Royal Horticultural Society Garden Plants and Flowers. Dorling Kindersley, 2003.