Silvicultural guide for paper birch in the Northeast / L.O. Safford.

by Safford, Lawrence O.
Broomall, Penns. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1983.

Series: Research paper NE (Northeastern Forest Experiment Station) ; 535

Effect of soil and urea fertilization on foliar nutrients and basal area growth of red spruce / L.O. Safford, H.E. Young and T.W. Knight.

by Safford, Lawrence O.
Orono : Life Sciences and Agriculture Experiment Station, University of Maine, 1977.

Series: Bulletin (Life Sciences and Agriculture Experiment Station) ; 740

Ten-year average growth rates in the spruce-fir region of northern New England / by Lawrence O. Safford.

by Safford, Lawrence O.
Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1968.

Series: Research paper (Northeastern Forest Experiment Station) ; NE-93