Nguyen Manh Linh <br/><br/>
Nghien cuu lich van nien  Tra cuu am duong lich van nien 121 nam ( 1900 - 2020) 
Nguyen Manh Linh, Trinh Tien Dieu 
 - Ha Noi  Bach Khoa  2005 
 - 512Tr  Hinh ve, Bang bieu  27cm 
 - Phu luc trang 506 den 524 .
<br/><br/><label>Dewey Class. No.: </label>800