Cita APA (7th ed.)

(1963). The Dictionary of National Biography: Twenthieth Century (7. Aufl.). Oxford Univ. Press.

Cita Chicago (17th ed.)

The Dictionary of National Biography: Twenthieth Century. 7. Aufl. Oxford: Oxford Univ. Press, 1963.

Cita MLA (8th ed.)

The Dictionary of National Biography: Twenthieth Century. 7. Aufl. Oxford Univ. Press, 1963.