Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Rottman, Gordon L. and Taylor, Chris. and Ray James Lee. and Mallinson, Alex",Viet Cong and NVA tunnels and fortifications of the Vietnam War,,"Osprey, 2006",2006,Fortress,,9781846030031,,https://cir.nii.ac.jp/crid/1130000796942493312