Eddington, A. S. (1928). The nature of the physical world. The Macmillan company ; The University press.
Cita Chicago (17th ed.)Eddington, Arthur Stanley. The Nature of the Physical World. New York : Cambridge, Eng.: The Macmillan company ; The University press, 1928.
Cita MLA (8th ed.)Eddington, Arthur Stanley. The Nature of the Physical World. The Macmillan company ; The University press, 1928.
Atenció: Aquestes cites poden no estar 100% correctes.