Crucible Group. (1994). People, plants, and patents: The impact of intellectual property on biodiversity, conservation, trade, and rural society. International Development Research Centre.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Crucible Group. People, Plants, and Patents: The Impact of Intellectual Property on Biodiversity, Conservation, Trade, and Rural Society. Ottawa, Canada: International Development Research Centre, 1994.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Crucible Group. People, Plants, and Patents: The Impact of Intellectual Property on Biodiversity, Conservation, Trade, and Rural Society. International Development Research Centre, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.