APA-čujuhus (7. p.)
Kearns, G. (2009). Geopolitics and empire: The legacy of Halford Mackinder. Oxford University Press.
Chicago-čujuhus (17. p.)
Kearns, Gerard. Geopolitics and Empire: The Legacy of Halford Mackinder. New York, N.Y.: Oxford University Press, 2009.
MLA-čujuhus (9. p.)
Kearns, Gerard. Geopolitics and Empire: The Legacy of Halford Mackinder. Oxford University Press, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.