Navarra, J. G. (1980). Earth, Space, and time: An introduction to earth science. John Wiley.
Chicago Style (17th ed.) ZitazioaNavarra, John Gabriel. Earth, Space, and Time: An Introduction to Earth Science. New York: John Wiley, 1980.
MLA (9th ed.) ZitazioaNavarra, John Gabriel. Earth, Space, and Time: An Introduction to Earth Science. John Wiley, 1980.
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