TY  - BOOK
AU  - Levitt,J.
TI  - Responses of plants to environmental stresses
T2  - Physiological ecology
SN  - 0124455603
U1  - 632.11 L666R 
PY  - 1972///
CY  - New York
PB  - Academic Press
KW  - Plants
KW  - Hardiness
ER  -