By Dykstra Dennis P.   Froehlich Henry A.   in Journal of Forestry

ISSN:0022-1201|74|10|684-687

Society of American Foresters‎(1976)‎

Access to resources Favorite 12.638278

By Steinblums Ivars J.   Froehlich Henry A.   Lyons Joseph K.   in Journal of Forestry

ISSN:0022-1201|82|1|49-52

Society of American Foresters‎(1984)‎

Access to resources Favorite 8.692337

By Stewart Rodney   Froehlich Henry   Olsen Eldon   in Western Journal of Applied Forestry

ISSN:0885-6095|3|1|20-22

Society of American Foresters‎(1988)‎

Access to resources Favorite 2.4013746