Jordan, Robert R. Stratigraphy of the sedimentary rocks of Delaware, by Robert R. Jordan. - Newark, Del., 1962. - v, 51 p. illus. (4 fold. in pocket) 23 cm. - Delaware. Geological survey. Bulletin no. 9 . Bibliography: p. 45-51. LCCN: gs 63000197 Subjects--Topical Terms: Geology--Delaware.Geology, Stratigraphic.Sedimentary rocks.Petrology--Delaware. LC Class. No.: QE95 / .A353 no. 9