World insurance trends : proceedings of the First International Insurance Conference, Philadelphia, Pennsylvania, May 1957 / Davis W. Gregg, Dan M. McGill. International Insurance Conference (1st : 1957 : Philadelphia, Pa.) Gregg, Davis W. (Davis Weinert) McGill, Dan M. (Dan Mays), 1919-2013. Insurance Congresses. 368 GRW "Conference Theme : 'The Role of Private Enterprise in Insuring Life and Property Values'". Philadelphia : University of Pennsylvania Press, 1959. 1959. 1959 Text xi, 689 p. : eng