APA (7th ed.) Citation
Summerfield, M. A. (1991). Global geomorphology: An introduction to the study of landforms. Pearson Education.
Chicago Style (17th ed.) Citation
Summerfield, M. A. Global Geomorphology: An Introduction to the Study of Landforms. Harlow, Essex: Pearson Education, 1991.
MLA (9th ed.) Citation
Summerfield, M. A. Global Geomorphology: An Introduction to the Study of Landforms. Pearson Education, 1991.
Warning: These citations may not always be 100% accurate.