1. Geology of Comb Ridge and vicinity north of San Juan river, San Juan County, Utah Author/Creator: Sears, Julian D. 1891- (Julian Ducker), author Publication/Creation: [Washington, D.C.] : [United States Department of the Interior, Geological Survey], 1956 Resource Type: Book Access & Availability: Loading
2. Transgressive and regressive cretaceous deposits in southern San Juan Basin, N. Mexi Author/Creator: Sears, Julian D. 1891- (Julian Ducker), author Publication/Creation: [Washington] : [United States Department of the Interior, Geological Survey], [1941] Resource Type: Book Access & Availability: Loading
3. Geology and fuel resources of the southern part of the San Juan Basin, New Mexico. Part 1, The coal field from Gallup eastward toward Mount Taylor with a measured section of pre-Dakota rocks near Navajo Church Author/Creator: Sears, Julian D. 1891- (Julian Ducker), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1934 Resource Type: Book Access & Availability: Loading
4. Geology and coal resources of the Gallup-Zuni basin, New Mexico Author/Creator: Sears, Julian D. 1891- (Julian Ducker), author Publication/Creation: [Washington, D.C.] : Department of the Interior, U.S. Geological Survey, 1925 Resource Type: Book Access & Availability: Loading
5. Relations of the Wasatch and Green River formations in northwestern Colorado and southern Wyoming with notes on oil shale in the Green River formation Author/Creator: Sears, Julian D. 1891- (Julian Ducker), author Publication/Creation: [Washington] : [Department of the Interior, United States Geological Survey], [1925] Resource Type: Book Access & Availability: Loading