Guttmann, H. Peter 1919- The international consultant / H. Peter Guttmann. - Rev. ed. - Washington, D.C. : International Law Institute, c1987. - xi, 185 p. ; 24 cm. ISBN: 0471609110 : Subjects--Topical Terms: Consulting engineers.Engineering contracts. Dewey Class. No.: 658.46 / GUI 1987