APA (7th ed.) Citation

Southwick, D., Lusardi, B., & Dengler, E. (2017). Minnesota at a Glance Geologic Time. Minnesota Geological Survey.

Chicago Style (17th ed.) Citation

Southwick, D.L, B.A Lusardi, and E.L Dengler. Minnesota at a Glance Geologic Time. Minnesota Geological Survey, 2017.

MLA (9th ed.) Citation

Southwick, D.L, et al. Minnesota at a Glance Geologic Time. Minnesota Geological Survey, 2017.