TY  - BOOK
AU  - Nilssson S
AU  -  Nilsson L
AU  -  Praglowski J
TI  - Atlas of airborne pollen grains and spares in Northern Europe
U1  - I,166, L7 
PY  - 1977///
CY  - Europe
PB  - Stockholo         
KW  -  Pollen
KW  - Botany
ER  -