Columbia subject headings:
Botany--Europe--Maps.
Maps.
Paleobotany--Europe--Maps.
Phytogeography--Europe--Maps.
Pollen, Fossil--Maps.
Pollen--Europe--Maps.
Harvard subject headings:
Paleobotany--Europe--Maps.
Phytogeography--Europe--Maps.
Pollen, Fossil--Maps.
Pollen--Europe--Maps.
Princeton subject headings:
Botany--Europe--Maps.
Paleobotany--Europe--Maps.
Phytogeography--Europe--Maps.
Pollen, Fossil--Maps.
Pollen--Europe--Maps.