An improved tri-tube cryogenic gravel sampler
By: by Fred H. Everest, Carl E. McLemore, and John F. Ward.
Contributors: McLemore, Carl E.; Ward, John F., 1946-; Pacific Northwest Forest and Range Experiment Station (Portland, Or.).; United States. Forest Service.
Series: USDA Forest Service research note PNW ; 350; PNW research note -- 350.
Publisher: Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1980
Place of publication: Portland, Or
Language: eng
Subjects: Forestry engineering.; Sedimentation and deposition.; Stream ecology.
Notes: Issued Mar. 1980.

Bibliography: p. 8.

Also issued online.