Sagarin, R., & Pauchard, A. (2012). Observation and ecology: Broadening the scope of science to understand a complex world. Island Press/Center for Resource Economics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sagarin, Rafe, و Aníbal Pauchard. Observation and Ecology: Broadening the Scope of Science to Understand a Complex World. Washington, DC: Island Press/Center for Resource Economics, 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sagarin, Rafe, و Aníbal Pauchard. Observation and Ecology: Broadening the Scope of Science to Understand a Complex World. Island Press/Center for Resource Economics, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.