Are you overloading your skidder tires?

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100 1 ‡aBiller, Cleveland J.
245 1 0 ‡aAre you overloading your skidder tires? / ‡cby Cleveland J. Biller.
260 ‡aUpper Darby, Pa. : ‡bNortheastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, ‡c1972.
300 ‡a7 p. : ‡bill. ; ‡c27 cm.
490 0 ‡aUSDA Forest Service research paper NE ; ‡v247
500 ‡aCover title.
538 ‡aMode of access: Internet.
650 0 ‡aTires.
650 0 ‡aLogging ‡xMachinery.
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