R. Fessenden

Forest Windthrows and Their Influence on Soil Morphology

K. Armson, R. Fessenden, 1973 .

Effect of some fertilizers and simazine on the activity of the micro-organisms in jack pine humus

K. Armson, R. Fessenden, R. Calvert, 1971 .

Acetylene-Ethylene Assay Studies on Excised Root Nodules of Myrica asplenifolia L.1

R. Knowles, R. Fessenden, R. Brouzes, 1973 .

The Effect of Excess Soil Copper on the Growth of Black Spruce and Green Alder Seedlings

R. Fessenden, B. Sutherland, 1979, Botanical Gazette.