Pagulayan, N. Caltex reveals boroscope test results: Marked reduction in engine intake valve deposits. IN Drive. Manila Bulletin.
Chicago Style (17th ed.) CitationPagulayan, Neil. "Caltex Reveals Boroscope Test Results: Marked Reduction in Engine Intake Valve Deposits. IN Drive." Manila Bulletin .
MLA (9th ed.) CitationPagulayan, Neil. "Caltex Reveals Boroscope Test Results: Marked Reduction in Engine Intake Valve Deposits. IN Drive." Manila Bulletin, .
Warning: These citations may not always be 100% accurate.