De Castro, E. (2017). Carlsen, So remain as world's top two. IN Let's Play CHESS [column]. Philippine Star.
Cita Chicago (17th ed.)De Castro, Edgar. "Carlsen, So Remain as World's Top Two. IN Let's Play CHESS [column]." Philippine Star 2017.
Cita MLA (9th ed.)De Castro, Edgar. "Carlsen, So Remain as World's Top Two. IN Let's Play CHESS [column]." Philippine Star, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.