International Association of Engineering Geology. Commission on Engineering Geological Maps. (1976). Engineering geological maps: A guide to their preparation. Unesco Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Association of Engineering Geology. Commission on Engineering Geological Maps. Engineering Geological Maps: A Guide to Their Preparation. Paris: Unesco Press, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Association of Engineering Geology. Commission on Engineering Geological Maps. Engineering Geological Maps: A Guide to Their Preparation. Unesco Press, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.