Tolentino, F. The Precautionary principle: Closing the gap between international trade and biotechnology (Conclusion). Manila Bulletin.
Citazione stile Chigago Style (17a edizione)Tolentino, Francis. "The Precautionary Principle: Closing the Gap Between International Trade and Biotechnology (Conclusion)." Manila Bulletin .
Citatione MLA (9a ed.)Tolentino, Francis. "The Precautionary Principle: Closing the Gap Between International Trade and Biotechnology (Conclusion)." Manila Bulletin, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.