The dynamic forces & moments required in handling tree-length logs /
Prif Awdur: | |
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Awduron Corfforaethol: | , , |
Fformat: | Dogfen y Llywodraeth Llyfr |
Iaith: | English |
Cyhoeddwyd: |
[Saint Paul, Minn.] :
North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture,
1971
|
Cyfres: | USDA Forest Service research paper NC
55 |
Pynciau: |