Previous ed.: published as The identification of flowering plant families / P. H. Davis, J. Cullen. 1989.
Bibliography: p191-194. - Includes index.
The identification of flowering plant families : including a key to those native and cultivated in north temperate regions by J. Cullen. ISBN 0521585503. Published by Cambridge University Press in 1997. Publication and catalogue information, links to buy online and reader comments.