You searched for: Author Liu, Zhi Remove constraint Author: Liu, Zhi Subject Location Remove constraint Subject: Location Year 2011 Remove constraint Year: 2011
2011. United States. Bureau of Transportation Statistics, Beningo, Steve, United States. Bureau of Customs and Border Protection, and Liu, Zhi. This point shapefile depicts points of entry for land modes along the United States - Canada border and the United States - Mexico border. The port... United States. Bureau of Transportation Statistics.