CENTRE OF PUBLICATIONS NEW DELHI. (1991). DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. CENTRE OF PUBLICATION.
芝加哥风格引文CENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. NEW DELHI: CENTRE OF PUBLICATION, 1991.
MLA引文CENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF SENIOR EXECUTIVES OF PUBLIC SECTOR UNDERTAKINGS. CENTRE OF PUBLICATION, 1991.
警告：这些引文格式不一定是100％准确.