MTDC Staff, . 1979. Engineering Field Notes: Volume 11 Number 2 February 1979. 7971 3802. Washington DC: U.S. Department of Agriculture, Forest Service, Engineering. 16 p.
Topics in this issue include:
- Unified Rock Classification System—Clarification and Amendments
- Forest Transportation Analysts—Job Performance and Training Requirements
- The Use of Corrugated Metal Culverts Liners to Minimize Stream Bedload Effects
- Washington Office News
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