Warntz, W. (1964). Geography now and then : some notes on: The history of academic geography in the. American Geographical society.
Chicago-čujuhus (17. p.)Warntz, William. Geography Now and Then : Some Notes on: The History of Academic Geography in the. New York: American Geographical society, 1964.
MLA-čujuhus (9. p.)Warntz, William. Geography Now and Then : Some Notes on: The History of Academic Geography in the. American Geographical society, 1964.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.