Gardner, Herman ; Marshik, Joel M; Strickland, Harold L; Taylor, Heyward T; Weller, Charles R. 1974. Engineering Field Notes: Volume 6 Number 11 November 1974. 7471 3811. Washington DC: U.S. Department of Agriculture, Forest Service, Engineering.

Topics in this issue include:

• Something You Should Know About Oil Heating Systems
• Specification For Environment Protection
• Washington Office Division of Engineering News
• Readers Exchange

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