TY  - BOOK
AU  - "Pierik, R.L.M."
TI  - Regeneration. Vernalization and flowering in unaria annua L. in vivo and vitro
U1  - 581.08   K7 
PY  - 0000///Netherlands
CY  - 1967
PB  - Mededelingen Landbouwhogeschool Wageningen
ER  -