TY - BOOK AU - Sullivan,Robert E. TI - Conservation of oil and gas in North Dakota,: a legal history 1948-1958 AV - KFN8858.A1 S8 PY - 1960/// CY - Grand Forks KW - Petroleum law and legislation KW - North Dakota KW - Natural gas KW - Law and legislation N1 - "Excerpts from a book [with same title, published 1959] prepared at the direction of the Mineral and Natural Resources Law Section of the American Bar Association."; Bibliographical footnotes ER -