Einstein, A. (1960). relativity- the special & the general theory. Methuen.
Lua i Stíl Chicago (17ú heag.)Einstein, Albert. Relativity- the Special & the General Theory. London: Methuen, 1960.
Lua MLA (9ú heag.)Einstein, Albert. Relativity- the Special & the General Theory. Methuen, 1960.
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