Royal horticultural society garden plants and flowers through the year / Ian Spence; Royal Horticultural Society (Great Britain) - Revised ed. - London : Dorling Kindersley, 2007 - 420 p. : ill. ; 23 cm. ISBN: 9781405318150 Subjects--Topical Terms: Plants, Ornamental. Dewey Class. No.: 635.9 / IAR 2007