The geography of North America
Hardwick Susan Wiley, Shelley Fred M., Holtgrieve Donald G.Kniha
Citace v seznamu literatury:
HARDWICK, Susan Wiley; SHELLEY, Fred M. a HOLTGRIEVE, Donald G. The geography of North America: environment, culture, economy. Second edition. Boston: Pearson, [2013]. ISBN 9780321769671.