Newbold, K. B. (2017). Population Geography: Tools and Issues (3rd ed.). Rowman & Littlefield.
Chicago Style (17th ed.) ZitazioaNewbold, K. Bruce. Population Geography: Tools and Issues. 3rd ed. London.: Rowman & Littlefield, 2017.
MLA (9th ed.) ZitazioaNewbold, K. Bruce. Population Geography: Tools and Issues. 3rd ed. Rowman & Littlefield, 2017.
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