一般注記Distributed to depository libraries in microfiche
"June 1989."
Physical description for original version: 25 p. : 28 cm
書誌注記Includes bibliographical references (p. 20-25)
原資料等に関する注記原資料の出版事項: [Portland, Or.] (P.O. Box 3890, Portland 97208) : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [1989]
SUPTDOC番号: A 13.88: PNW-GTR-246
GPO管理番号: 0083-B-06 (MF)