Tolentino, F. The Precautionary principle: Closing the gap between international trade and biotechnology (Conclusion). Manila Bulletin.
芝加哥风格引文Tolentino, Francis. "The Precautionary Principle: Closing the Gap Between International Trade and Biotechnology (Conclusion)." Manila Bulletin .
MLA引文Tolentino, Francis. "The Precautionary Principle: Closing the Gap Between International Trade and Biotechnology (Conclusion)." Manila Bulletin, .
警告：这些引文格式不一定是100％准确.