Fox, J. G. (1961). Some selected problems of aerospace--political, military, and economic.
Lua i Stíl Chicago (17ú heag.)Fox, Julius George. Some Selected Problems of Aerospace--political, Military, and Economic. 1961.
Lua MLA (9ú heag.)Fox, Julius George. Some Selected Problems of Aerospace--political, Military, and Economic. 1961.
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