Mansfield, Wendell Clay, 1874-1939. Oil-prospecting well near Havelock, North Carolina, by Wendell C. Mansfield. - Raleigh, N.C., 1927. - 19 p. incl. tables, diagr. 25 1/2 cm. - Economic paper (North Carolina. Department of Conservation and Development) ; no. 58. . Bibliographical references. LCCN: gs 27000216 Subjects--Topical Terms: Petroleum--North Carolina. LC Class. No.: TN872.N8 / M3