The identification of flowering plant families, including a key to those native and cultivated in north temperate regions /
P.H. Davis, J. Cullen.
- 3rd ed. / completely rev. and edited by J. Cullen.
- Cambridge [England] ; New York : Cambridge University Press, 1989.
- x, 133 p. : ill. ; 19 cm.
Includes bibliographical references (p. 117-119) and indes.