一般注記Distributed to depository libraries in microfiche
"April 1990"--P. [2] of cover
Physical description for original version: 24 p. : 28 cm
書誌注記Includes bibliographical references (p. 9-10)
原資料等に関する注記原資料の出版事項: Radnor, PA (5 Radnor Corporate Center, Suite 200, 100 Matsonford Rd., Radnor 19087) : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, [1990]
SUPTDOC番号: A 13.88: NE-138
GPO管理番号: 83-B-6 (MF)