Dahlman, C., Renwick, W. H., & Bergman, E. F. (2014). Introduction to geography: People, places & environment (Fifth edition.). Pearson.
Chicago-viite (17. p.)Dahlman, Carl, William H. Renwick, ja Edward F. Bergman. Introduction to Geography: People, Places & Environment. Fifth edition. [Edenburhg Gate, England]: Pearson, 2014.
MLA-viite (9. p.)Dahlman, Carl, et al. Introduction to Geography: People, Places & Environment. Fifth edition. Pearson, 2014.
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