一般注記"Prepared for U.S. Department of Transportation, Federal Railroad Administration, Office of Research and Development."
Distributed to depository libraries in microfiche
"May 1991."
"Report no. 23."
Physical description for original version: 42 p. : 28 cm
書誌注記Includes bibliographical references (p. 41-42)
原資料等に関する注記原資料の出版事項: Boulder, Colo. ; [Springfield, VA : U.S. Dept. of Commerce, National Institute of Standards and Technology, : For sale by National Technical Information Service, 1991]
SUPTDOC番号: C 13.58: 3968
GPO管理番号: 0247-D (MF)