ebrary, Inc, Ausubel, J., & Herman, R. (1988). Cities and their vital systems: Infrastructure past, present, and future. National Academy Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, Jesse Ausubel, و Robert Herman. Cities and Their Vital Systems: Infrastructure Past, Present, and Future. Washington, D.C.: National Academy Press, 1988.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, et al. Cities and Their Vital Systems: Infrastructure Past, Present, and Future. National Academy Press, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.