एपीए उद्धरण

McKnight, T. (2005). Physical geography: A landscape appreciation. Upper Saddle River, N.J: Pearson Prentice Hall.

शिकागो स्टाइल उद्धरण

McKnight, Tom. Physical Geography: A Landscape Appreciation. Upper Saddle River, N.J: Pearson Prentice Hall, 2005.

एमएलए उद्धरण

McKnight, Tom. Physical Geography: A Landscape Appreciation. Upper Saddle River, N.J: Pearson Prentice Hall, 2005.