Cita APA (7a ed.)

Vries, B. d., & Betlyon, J. W. (1998). Umm el-Jimal: A frontier town and its landscape in Northern Jordan. JRA.

Cita Chicago Style (17a ed.)

Vries, Bert de, y John Wilson Betlyon. Umm El-Jimal: A Frontier Town and Its Landscape in Northern Jordan. Portsmouth, RI: JRA, 1998.

Cita MLA (9a ed.)

Vries, Bert de, y John Wilson Betlyon. Umm El-Jimal: A Frontier Town and Its Landscape in Northern Jordan. JRA, 1998.