Editore: Oljedirektoratet, Norwegian Petroleum Directorate Pap. No. 30, 1981, 36 pp. + 3 folded sections in pocket. ISBN 8272570823, 1981
ISBN 10: 8272570823 ISBN 13: 9788272570827
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. Condizione: Very Good. ORIGINAL PUBLICATION; Softcovers; in very good condition.