APA (7th ed.) Citation

Geological Survey (U.S.) & Harlan, S. S. (2005). ⁴⁰Ar/³⁹Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous rocks, northwestern Montana. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Stephen S. Harlan. ⁴⁰Ar/³⁹Ar and K-Ar Geochronology and Tectonic Significance of the Upper Cretaceous Adel Mountain Volcanics and Spatially Associated Tertiary Igneous Rocks, Northwestern Montana. Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2005.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Stephen S. Harlan. ⁴⁰Ar/³⁹Ar and K-Ar Geochronology and Tectonic Significance of the Upper Cretaceous Adel Mountain Volcanics and Spatially Associated Tertiary Igneous Rocks, Northwestern Montana. U.S. Dept. of the Interior, U.S. Geological Survey, 2005.