http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Lịch sử kinh tế các nước ( ngoài Liên-xô ); T1
F Ia Polianski, Trương Hữu Quýnh, Lương Ninh
economic geography,economics - history - feudalism