Ong, K. S. (1985). Marketing of a new grade of petrol.
Chicago Style (17th ed.) CitationOng, Kai Seong. Marketing of a New Grade of Petrol. 1985.
MLA (8th ed.) CitationOng, Kai Seong. Marketing of a New Grade of Petrol. 1985.
Warning: These citations may not always be 100% accurate.