APA-referens (7:e uppl.)

ebrary, Inc, & Holtfrerich, C. (1988). Economic and strategic issues in U.S. foreign policy. W. de Gruyter.

Chicago-referens (17:e uppl.)

ebrary, Inc, och Carl-Ludwig Holtfrerich. Economic and Strategic Issues in U.S. Foreign Policy. Berlin ; New York: W. de Gruyter, 1988.

MLA-referens (9:e uppl.)

ebrary, Inc, och Carl-Ludwig Holtfrerich. Economic and Strategic Issues in U.S. Foreign Policy. W. de Gruyter, 1988.