http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Sherlock holmes' guide to the global positioning system
The stories made-simple approaches to an emerging technology. The use of this military state 0f art in the consumer products is making GPS blended into everybody's daily life
Global Positioning System,Hệ thống định vị toàn cầu