Betlyon, J. W., & De Vries, B. (1998). Umm el-Jimal: A frontier town and its landscape in northern Jordan. Portsmouth, R.I.: Journal of Roman Archaeology.
استشهاد بنمط شيكاغوBetlyon, John Wilson., و Bert De Vries. Umm El-Jimal: A Frontier Town and Its Landscape in Northern Jordan. Portsmouth, R.I.: Journal of Roman Archaeology, 1998.
MLA استشهادBetlyon, John Wilson., و Bert De Vries. Umm El-Jimal: A Frontier Town and Its Landscape in Northern Jordan. Portsmouth, R.I.: Journal of Roman Archaeology, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.