TY  - BOOK
AU  - de Roon A.C.
TI  - International directory of specialists in plant taxonomy: with a census of their current interests 
T2  - Regnum vegetabile; a series of publications for the use of plant taxonomists and plant geographers,
PY  - 1958///
CY  - Utrecht, Netherlands
PB  - International Bureau for Plant Taxonomy and Nomenclature.
KW  - Botany
KW  - Nomenclature
N1  - Includes bibliogr. references
ER  -