TY  - BOOK
AU  - Geesink, R.
AU  - Leeuwenberg,A.J.M.
AU  - Ridsdale,C.E.
AU  - Veldkamp,J.F.
TI  - Thonner's analytical key to the families of flowering plants
SN  - 9060214625
U1  - 582.13 22
PY  - 1981///
CY  - Wageningen, Hague, Boston, Hingham, MA
PB  - Centre for Agricultural Pub. and Documentation, Leiden University Press, Distributors for the U.S. and Canada, Kluwer Boston
KW  - Phanerogams
KW  - Identification
KW  - Plants
N1  - Includes bibliographical references and index
ER  -