APA aipamena

Macaskill, W. (2017). Effective altruism: Introduction. Pacific University Oregon.

Chicago Style aipamena

Macaskill, W. Effective Altruism: Introduction. Pacific University Oregon, 2017.

MLA aipamena

Macaskill, W. Effective Altruism: Introduction. Pacific University Oregon, 2017.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.