Παραπομπή σε μορφή APA (7η εκδ.)

Tolentino, F. The Precautionary principle: Closing the gap between international trade and biotechnology (Conclusion). Manila Bulletin.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Tolentino, Francis. "The Precautionary Principle: Closing the Gap Between International Trade and Biotechnology (Conclusion)." Manila Bulletin .

Παραπομπή σε μορφή MLA (9th εκδ.)

Tolentino, Francis. "The Precautionary Principle: Closing the Gap Between International Trade and Biotechnology (Conclusion)." Manila Bulletin, .