TY  - BOOK
AU  - Roper, Lanning
TI  - Hardy Herbaceous plants
U1  - 635.7 
PY  - 1960///
CY  - New York,London etc
PB  - Penguin Books Ltd.
KW  - Perennials
KW  - Plants, Ornamental
KW  - Great Britain
KW  - Peinture -- 20e siècle
N1  - ENG
ER  -