Shepardson, W. H. (1942). The interests of the United States as a world power. [Claremont Colleges].
Citazione stile Chigago Style (17a edizione)Shepardson, Whitney Hart. The Interests of the United States as a World Power. Claremont, Calif: [Claremont Colleges], 1942.
Citatione MLA (9a ed.)Shepardson, Whitney Hart. The Interests of the United States as a World Power. [Claremont Colleges], 1942.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.