RecordNumber
30871
Title
Traffic and grade crossing control devices
Publication
Transportation research Board
Publication Year
1989
Collation
v, 72 p. : ill
Series
Transportation research record
Notes
Papers from the 68th Annual Meeting of the Transportation Research Board, Jan. 22-26, 1989, Washington, D.C , Includes bibliographical references , 0309049709
Subject
Traffic signs and signals , Railroads
ADDED ENTRIES
, National Research Council (U.S.). Transportation Research Board (68th : 1989 : Washington, D.C.)
LC Class
TE
LC Number
7
LC CutterNumber
.H5
LC Date
1989
وارد کنندة اطلاعات
فراهاني