(1982). Proceedings of the 15th Symposium on Ring Theory. Bình Trị Thiên: Sở Văn hoá thông tin.
Παραπομπή Chicago StyleProceedings of the 15th Symposium On Ring Theory. Bình Trị Thiên: Sở Văn hoá thông tin, 1982.
Παραπομπή MLAProceedings of the 15th Symposium On Ring Theory. Bình Trị Thiên: Sở Văn hoá thông tin, 1982.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.