Citação norma APA

Ehrmann, H. M. (1948). Foreign policies and relations of the United States. American Academy of Political and Social Science.

Citação norma Chicago

Ehrmann, Howard Merh. Foreign Policies and Relations of the United States. Philadelphia: American Academy of Political and Social Science, 1948.

Citação norma MLA

Ehrmann, Howard Merh. Foreign Policies and Relations of the United States. American Academy of Political and Social Science, 1948.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.