Cruz, N. . H. (1998). To Vigilar Ramos. IN As I see it [column]: Please spare those trees. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Cruz, Neal H. "To Vigilar Ramos. IN As I See It [column]: Please Spare Those Trees." Philippine Daily Inquirer 1998.
Lua MLA (9ú heag.)Cruz, Neal H. "To Vigilar Ramos. IN As I See It [column]: Please Spare Those Trees." Philippine Daily Inquirer, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.