Guillen, M. (2018). The end of life as we know it: Ominous news from the frontiers of science. Salem Books, an imprint of Regnery Publishing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Guillen, Michael. The End of Life as We Know It: Ominous News from the Frontiers of Science. Washington, DC: Salem Books, an imprint of Regnery Publishing, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Guillen, Michael. The End of Life as We Know It: Ominous News from the Frontiers of Science. Salem Books, an imprint of Regnery Publishing, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.