Holden, J. (2011). Physical geography: The basics. Routledge.
Chicago-čujuhus (17. p.)Holden, Joseph. Physical Geography: The Basics. London: Routledge, 2011.
MLA-čujuhus (9. p.)Holden, Joseph. Physical Geography: The Basics. Routledge, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.