Rainfall and agriculture in Northern Mesopotamia: proceedings of the Third MOS Symposium (Leiden 1999)
北宋皇陵; The Imperial Tombs of the Northern Song Dynasty
An Unofficial Alliance, Scotland and Sweden 1569-1654: Scotland and Sweden 1569-1654 (Northern World, 5)
Photographing the Aurora Boreralis: How to Shoot the Northern Lights - PDFDrive.com
北周史君墓; Shi Jun Tomb of the Northern Zhou Dynasty