Tan, R. R. Are negative carbon emissions possible. IN Star Science. The Philippine Star.
Chicago Style (17th ed.) CitationTan, Raymond R. "Are Negative Carbon Emissions Possible. IN Star Science." The Philippine Star .
MLA (9th ed.) CitationTan, Raymond R. "Are Negative Carbon Emissions Possible. IN Star Science." The Philippine Star, .
Warning: These citations may not always be 100% accurate.