Cita APA (7th ed.)
National Academy of Sciences (U.S.), ebrary, Inc, & True, F. W. (1913). A history of the first half-century of the National Academy of Sciences, 1863-1913. [National Academy Press].
Cita Chicago (17th ed.)
National Academy of Sciences (U.S.), Inc ebrary, i Frederick William True. A History of the First Half-century of the National Academy of Sciences, 1863-1913. Washington, [D.C.]: [National Academy Press], 1913.
Cita MLA (9th ed.)
National Academy of Sciences (U.S.), et al. A History of the First Half-century of the National Academy of Sciences, 1863-1913. [National Academy Press], 1913.
Atenció: Aquestes cites poden no estar 100% correctes.