APA
McKnight T.L, .Study Guide Physical Geography A Landscape Appreciation 6Ed (Pb 1999). : Prentice Hall.
Chicago
McKnight T.L, .Study Guide Physical Geography A Landscape Appreciation 6Ed (Pb 1999). : Prentice Hall.
Harvard
McKnight T.L, .Study Guide Physical Geography A Landscape Appreciation 6Ed (Pb 1999). : Prentice Hall.
MLA
McKnight T.L, .: Prentice Hall. .