Perkins, Dexter. 1889- The evolution of American foreign policy / Dexter Perkins. - New York : Oxford Univ. Press, 1948. - 187 p. : 17 cm. - The Home university library of modern knowledge, 208 . "Suggestions for further reading": p. 182. LCCN: 48008538 Subjects--Geographic Terms: United States--Foreign relations. LC Class. No.: E183.7 / .P47 Dewey Class. No.: 327.73 / PEE 1948