Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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