Cita APA (7th ed.)

Calumpita, R. E. (2005). DENR closes toxic treatment plant. Manila Times.

Cita Chicago (17th ed.)

Calumpita, Ronnie E. "DENR Closes Toxic Treatment Plant." Manila Times 2005.

Cita MLA (9th ed.)

Calumpita, Ronnie E. "DENR Closes Toxic Treatment Plant." Manila Times, 2005.