Gabriel, R. H. (1929). The Lure of the frontiers (Idependence ed.). New Haven, Yale University Press.
Chicago Style (17. basım) AtıfGabriel, Ralph Henry. The Lure of the Frontiers. Idependence ed. Toronto: New Haven, Yale University Press, 1929.
MLA (9th ed.) AtıfGabriel, Ralph Henry. The Lure of the Frontiers. Idependence ed. New Haven, Yale University Press, 1929.
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