APA ציטוט

Borns, J., & Maasch, K. A. (2015). Foot Steps of the Ancient Great Glacier of North America. Springer.

Trích dẫn kiểu Chicago

Borns, Jr, và Kirk Allen Maasch. Foot Steps of the Ancient Great Glacier of North America. Springer, 2015.

ציטוט MLA

Borns, Jr, và Kirk Allen Maasch. Foot Steps of the Ancient Great Glacier of North America. Springer, 2015.