APA-viite (7. p.)

Oxales, O. (2020). The health of humans, environment, and the economy. IN Opinion [column]. Manila Standard.

Chicago-viite (17. p.)

Oxales, Orlando. "The Health of Humans, Environment, and the Economy. IN Opinion [column]." Manila Standard 2020.

MLA-viite (9. p.)

Oxales, Orlando. "The Health of Humans, Environment, and the Economy. IN Opinion [column]." Manila Standard, 2020.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.