TY  - BOOK
AU  - Hall,Daniel
AU  - Osterstock,H.C.
ED  - Royal Horticultural Society (Great Britain)
TI  - The genus Tulipa,
AV  - QK495.T9 H3
PY  - 1940///
CY  - London
PB  - The Royal horticultural society
KW  - Tulips
N1  - "References in text": p. 161-162
ER  -