summary and evaluation of research on the use of plastic tubing in maple sap production
By: by Melvin R. Koelling, Barton M. Blum, Carter B. Gibbs.
Contributors: Blum, Barton M.; Gibbs, Carter B. 1925-
Series: Research paper NE -- 116.
Publisher: Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1968
Place of publication: Upper Darby, Pa
Language: eng
Number of pages: 12
Subjects: Sugar maple -- Tapping -- Equipment and supplies
Notes: Cover title.

Bibliography: p. 12.