Olson, William C. The Theory and practice of international relations / edited by William C. Olson, Fred A. Sondermann. - 2nd. ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1966. - xi, 478p. ; 24 cm. Subjects--Topical Terms: International relations. Dewey Class. No.: 327.101 / OLT 1966