De Castro, E. (2018). So makes mark in rapid chess. IN Let's Play CHESS [column]. Philippine Star.
Citazione stile Chigago Style (17a edizione)De Castro, Edgar. "So Makes Mark in Rapid Chess. IN Let's Play CHESS [column]." Philippine Star 2018.
Citatione MLA (9a ed.)De Castro, Edgar. "So Makes Mark in Rapid Chess. IN Let's Play CHESS [column]." Philippine Star, 2018.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.