TY  - BOOK
AU  - Den Ouden, P.
AU  - Boom, B. K.
TI  - Manual of cultivated conifers; hardy in the cold-and warm-temperate zone
U1  - 634.975 
PY  - 1978///
CY  - The Jague
PB  - Nijhoff
KW  - Coníferas
ER  -