Kemball, W. G. (1981). Canada and the world: A geography skills book. Oxford Univ. Press.
Cita Chicago Style (17a ed.)Kemball, Walter G. Canada and the World: A Geography Skills Book. Toronto: Oxford Univ. Press, 1981.
Cita MLA (9a ed.)Kemball, Walter G. Canada and the World: A Geography Skills Book. Oxford Univ. Press, 1981.
Precaución: Estas citas no son 100% exactas.