Osborn, D. J., & Helmy, I. (1980). The contemporary land mammals of Egypt (including Sinai). Chicago, Ill.: Field Museum of Natural History.
استشهاد بنمط شيكاغوOsborn, Dale J., و Ibrahim Helmy. The Contemporary Land Mammals of Egypt (including Sinai). Chicago, Ill.: Field Museum of Natural History, 1980.
MLA استشهادOsborn, Dale J., و Ibrahim Helmy. The Contemporary Land Mammals of Egypt (including Sinai). Chicago, Ill.: Field Museum of Natural History, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.