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- Title
- Studies on pipeline systems for gathering maple sap
- Date Issued
- January 1962
- Title
- Results and evaluation of new maple techniques
- Date Issued
- January 1964
- Title
- Effect of new techniques on maple sap yields
- Date Issued
- June 1962
- Title
- use of plastic tubing in gathering maple sap
- Date Issued
- November 1960