Cullinane, Michael Patrick, The open door era : united states foreign policy in the twentieth century 2017 / Michael Patrick Cullinane and Alex Goodall. - 1 online resource (225 pages) : illustrations, tables. - BAAS Paperbacks . - BAAS paperbacks. . Includes bibliographical references and index. ISBN: 9781474401333 (e-book) Subjects--Geographic Terms: United States--Foreign relations--20th century. Index Terms--Genre/Form: Electronic books. LC Class. No.: E744 / .C855 2017 Dewey Class. No.: 327.73