Natural gas pipelines--Costs.; Hydrogen--Transportation--Costs.; Pipelines--Costs.; Hydrogen as fuel--Costs.
Text document in PDF format.; Title from PDF title page (viewed on September 12, 2009).; "Received by ITS-Davis: December 2004"--Publication detail webpage.
TE228.A1 P36 no. 2007-24; Traffic signs and signals--California.; Highway communications--California.
Performed in cooperation with the California Dept. of Transportation and the Federal Highway Administration.; "November 2007."; Includes bibliographical references (p. 52).; Harvested from the web on 2/1/08