TY  - BOOK
AU  - Roberts, E.H., ed.
TI  - Viability of seeds
U1  - 581.467 21st ed.
PY  - 1972///
CY  - London
PB  - Chapman and Hall
KW  - Environmental impact
KW  - Seed dormancy
KW  - Seeds
KW  - Sowing
N1  - Index: p. 438-48
ER  -