一般注記Cover title
"The Pennsylvania Transportation Institute, the Pennsylvania State University"--Tech. rept. std. t.p
Distributed to depository libraries in microfiche
"October 1984."
HRD-10/11-84 (250) EW"--P. [4] of cover
Physical description for original version: viii, 65 p. : 28 cm
書誌注記Includes bibliographical references
原資料等に関する注記原資料の出版事項: [Washington, D.C.] ; Springfield, Va. : U.S. Dept. of Transportation, Federal Highway Administration : National Technical Information Service [distributor], 1984
SUPTDOC番号: TD 2.30: 84/016
テクニカルリポート番号: FHWA/RD-84/016
テクニカルリポート番号: HRD-10/11-84 (250) EW
GPO管理番号: 982-G-11 (microfiche)