1. Stratigraphy of pre-Keweenawan rocks in parts of northern Michigan Author/Creator: James, H. L. 1912-2000, (Harold Lloyd), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1958 Resource Type: Book Access & Availability: Loading
2. Stromatolites of the Belt Series in Glacier National Park and vicinity, Montana Author/Creator: Rezak, Richard, 1920- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1957 Resource Type: Book Access & Availability: Loading