APA (7th ed.) Citation

Wright, H. J. (1990). Educational Series 7. Geologic History of Minnesota Rivers. Minnesota Geological Survey.

Chicago Style (17th ed.) Citation

Wright, H.E. Jr. Educational Series 7. Geologic History of Minnesota Rivers. Minnesota Geological Survey, 1990.

MLA (9th ed.) Citation

Wright, H.E. Jr. Educational Series 7. Geologic History of Minnesota Rivers. Minnesota Geological Survey, 1990.

Warning: These citations may not always be 100% accurate.