APA (7e ed.) Bronvermelding

Cruz, N. . H. (1998). To Vigilar Ramos. IN As I see it [column]: Please spare those trees. Philippine Daily Inquirer.

Chicago (17e ed.) Bronvermelding

Cruz, Neal H. "To Vigilar Ramos. IN As I See It [column]: Please Spare Those Trees." Philippine Daily Inquirer 1998.

MLA (9e ed.) Bronvermelding

Cruz, Neal H. "To Vigilar Ramos. IN As I See It [column]: Please Spare Those Trees." Philippine Daily Inquirer, 1998.