William Bullock Clark
William Bullock Clark, 1860-1917
Clark Papers
The Geography of Maryland. Part II Clark, William Bullock, Edward B., Mathews and Edward W. Berry. The Surface and Underground Water Resources of Maryland, Including Delaware and the District of Columbia
... The Mesozoic Echinodermata of the United States, by William Bullock Clark
Correlation Papers -- Eocene, by William Bullock Clark. [U.S. Geological Survey Bulletin No. 83.]
The Eocene Deposits of the Middle Atlantic Slope in Delaware, Maryland, and Virginia
Contributions to the Cretaceous Paleontology of the Pacific Coast
Eocene Deposits of the Middle Atlantic Slope in Delaware, Maryland, and Virginia, by William Bullock Clark. [U.S. Geological Survey Bulletin No. 141.]
Analyses of Rocks, with a Chapter on Analytical Methods, Laboratory of the United States Geological Survey 1880 to 1896
Contributions to the Cretaceous Paleontology of the Pacific Coast
Portraits of Conflict
Monographs of the United States Geological Survey. Volume LIV. The Mesozoic and Cenozoic Echinodermata of the United States. By William Bullock Clark and Mayville W. Twitchell
Collected Papers
Results of Spirit Leveling in Maryland 1896 to 1911, Inclusive. R.B. Marshall, Chief Geographer. Work Done in Cooperation with the State Through the Maryland Geological Survey, William Bullock Clark, State Geologist. [U.S. Geological Survey Bulletin 563.].
The Geography of Maryland, by Wm Bullock Clark
Maryland Geological Survey. [Stratigraphical Reports.] Eocene. (The Eocene Deposits of Maryland. By William Bullock Clark and George Curtis Martin.-Systematic Paleontology, Eocene. [By Various Authors.]).
Maryland Mineral Industries, 1897-1907
The Mesozoic and Cenozoic Echinodermata of the United States, by William Bullock Clark and Mayville W. Twitchell