1. Pollen analysis of surface samples of vegetation from Arctic Quebec;Bartley;Pollen Spores,1967
2. Textbook of Pollen Analysis;Faegri,1964
3. Palaeobotanical investigations at Sermermiut, Jakobshavn, west Greenland;Fredskild;Medd. Grønland,1967
4. The Postglacial History of Vegetation and Climate in the Labrador-Quebec Region as determined by Palynology;Grayson,1956
5. Climatic variation and observed changes in the general circulation;Lamb;Geograf. Ann.,1961