Edwards, Jerry L; McKenzie, Dan ; Johnson, Allan A; Weller, Charles R; Taylor, Heyward T. 1973. Engineering Field Notes: Volume 5 Number 9 September 1973. 7371 3806. Washington DC: U.S. Department of Agriculture, Forest Service, Engineering. 15 p.

Topics in this issue include:

• Tractor Mounted implement Hitch (Crawler and Wheel Skidder)
• implement Carrying Hitch for a 4—wheel Skidder
• Computer Plot Culvert Design
• Washington Office Division of Engineering News

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