APA Style
Summerfield, Michael A.. (1991).
Global Geomorphology .
United States of America:
John Wiley & Sons, Inc..
Chicago Style
Summerfield, Michael A..
Global Geomorphology.
United States of America:
John Wiley & Sons, Inc.,
1991.
Text.
MLA Style
Summerfield, Michael A..
Global Geomorphology.
United States of America:
John Wiley & Sons, Inc.,
1991.
Text.
Turabian Style
Summerfield, Michael A..
Global Geomorphology.
United States of America:
John Wiley & Sons, Inc.,
1991.
Print.