TY  - BOOK
AU  - Weevers, TH.
TI  - Fifty years of plant physiology
U1  - 571.2 
PY  - 1949///
CY  - Amsterdam
PB  - Scheltema & Holkema
KW  - Plant physiology
KW  - Botany
KW  -  History
N1  - Includes bibliographical references and index
ER  -