Have you considered blasting fireline?
By: by Al Hedin, Bill Williams.
Contributors: Williams, William J., 1938-
Series: DNR note -- no. 23
Publisher: State of Washington, Dept. of Natural Resources
Published: 1978
Place of publication: [Olympia]
Language: eng
Number of pages: 13
Subjects: Prescribed burning; Explosives
Notes: Title from caption.

"April 1978."

Bibliography: p. 13.