ROHAN BOOK CO. (2001). ALBERT EINSTEIN: WORLD GREAT SCIENTIST SERIES.
Cita Chicago (17th ed.)ROHAN BOOK CO. ALBERT EINSTEIN: WORLD GREAT SCIENTIST SERIES. 2001.
Cita MLA (9th ed.)ROHAN BOOK CO. ALBERT EINSTEIN: WORLD GREAT SCIENTIST SERIES. 2001.
Atenció: Aquestes cites poden no estar 100% correctes.