Aldover, R. Z. Oil to coal conversion in cement kilns. Philippine Engineering Journal.
Chicago Style (17th ed.) CitationAldover, Rogelio Z. "Oil to Coal Conversion in Cement Kilns." Philippine Engineering Journal .
MLA (9th ed.) CitationAldover, Rogelio Z. "Oil to Coal Conversion in Cement Kilns." Philippine Engineering Journal, .
Warning: These citations may not always be 100% accurate.