Block signal systems.
Series: H.rp.1081
Publisher: [s.n.]
Published: 1937
Place of publication: Washington
Language: eng
Format: Electronic resource
Subjects: Accidents -- Prevention; Railroads; Signals and signaling
Other titles: Requiring railroads to install block-signal systems, etc., to promote safety of employees and travelers
Notes: Record is based on bibliographic data in LexisNexis U.S. Serial Set Digital Collection (last viewed Jan. 2008). Reuse except for individual research requires license from LexisNexis Academic & Library Solutions

LexisNexis U.S. Serial Set Digital Collection

Electronic resource. [Bethesda, Md.]: LexisNexis Academic & Library Solutions, 2004. (LexisNexis U.S. Serial Set Digital Collection : no. 10084 H.rp.1081)