APA Citation

Wolter, S. F., & Kollath, R. (2010). Amazing agates: Lake Superior's banded gemstone (First edition.). Duluth, MN: Kollath+Stensaas Publishing.

Chicago Style Citation

Wolter, Scott F., and Rick Kollath. Amazing Agates: Lake Superior's Banded Gemstone. First edition. Duluth, MN: Kollath+Stensaas Publishing, 2010.

MLA Citation

Wolter, Scott F., and Rick Kollath. Amazing Agates: Lake Superior's Banded Gemstone. First edition. Duluth, MN: Kollath+Stensaas Publishing, 2010.

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