Eddington, A. S. (1928). The nature of the physical world. The Macmillan company ; The University press.
Lua i Stíl Chicago (17ú heag.)Eddington, Arthur Stanley. The Nature of the Physical World. New York : Cambridge, Eng.: The Macmillan company ; The University press, 1928.
Lua MLA (8ú heag.)Eddington, Arthur Stanley. The Nature of the Physical World. The Macmillan company ; The University press, 1928.
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