Edited by Walliser, o. H. (1996). Global events and event stratigraphy in the phanerozoic : results of the international: Interdisciplinary cooperation in the IGCP-Project 216 "global biological events in earth history". Springer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Edited by Walliser, otto H. Global Events and Event Stratigraphy in the Phanerozoic : Results of the International: Interdisciplinary Cooperation in the IGCP-Project 216 "Global Biological Events in Earth History". Berlin: Springer, 1996.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Edited by Walliser, otto H. Global Events and Event Stratigraphy in the Phanerozoic : Results of the International: Interdisciplinary Cooperation in the IGCP-Project 216 "Global Biological Events in Earth History". Springer, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.