1. Tectonic development of Idaho-Wyoming thrust belt;Armstrong,1965
2. Sevier orogenic belt in Nevada and Utah;Armstrong;Geological Society of America Bulletin,1968
3. Cordilleran metamorphic core complexes; From Arizona to south-ern Canada;Armstrong;Annual Reviews of Earth and Planetary Science,1982
4. Potassium-argon geochronometry of Mesozoic igneous rocks in Nevada, Utah, and southe Rn California;Armstrong,1973