Cita APA (7a ed.)

Tan, R. R. Are negative carbon emissions possible. IN Star Science. The Philippine Star.

Cita Chicago Style (17a ed.)

Tan, Raymond R. "Are Negative Carbon Emissions Possible. IN Star Science." The Philippine Star .

Cita MLA (9a ed.)

Tan, Raymond R. "Are Negative Carbon Emissions Possible. IN Star Science." The Philippine Star, .