CENTRE OF PUBLICATIONS NEW DELHI. (1991). DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. CENTRE OF PUBLICATION.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)CENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. NEW DELHI: CENTRE OF PUBLICATION, 1991.
MLA -ийн эшлэл (9 дэх хэвлэлт)CENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. CENTRE OF PUBLICATION, 1991.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.