Gabriel, R. H. (1929). The Lure of the frontiers (Idependence ed.). New Haven, Yale University Press.
芝加哥风格引文Gabriel, Ralph Henry. The Lure of the Frontiers. Idependence ed. Toronto: New Haven, Yale University Press, 1929.
MLA引文Gabriel, Ralph Henry. The Lure of the Frontiers. Idependence ed. New Haven, Yale University Press, 1929.
警告：这些引文格式不一定是100％准确.