A field method for measuring patterns of water dropped from helicopters
By: by Nonan V. Noste.
Series: USDA Forest Service research note PNW -- 202.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1973
Place of publication: Portland, Ore
Language: eng
Number of pages: 11
Subjects: Aeronautics in forest fire control.; Fire extinction.
Notes: Caption title.

"July 1973."

Includes bibliographical references.