Cita APA (7th ed.)

Longrigg Stephen Hemsley. (1968). Oil in the Middle -East ; its discovery and development (3rd ed.). Oxford univ. press.

Cita Chicago (17th ed.)

Longrigg Stephen Hemsley. Oil in the Middle -East ; Its Discovery and Development. 3rd ed. London: Oxford univ. press, 1968.

Cita MLA (9th ed.)

Longrigg Stephen Hemsley. Oil in the Middle -East ; Its Discovery and Development. 3rd ed. Oxford univ. press, 1968.