Williams, E. T., & Nicolls, C. S. (1981). The Dictionary of National Biography: Twenthieth Century: Ed. by E[dgar] Trevor] Williams and C[hristine] S[tephanie] Nicholls. Oxford Univ. Press.
Citace podle Chicago (17th ed.)Williams, Edgar Trevor, a Christine Stephanie Nicolls. The Dictionary of National Biography: Twenthieth Century: Ed. by E[dgar] Trevor] Williams and C[hristine] S[tephanie] Nicholls. Oxford: Oxford Univ. Press, 1981.
Citace podle MLA (8th ed.)Williams, Edgar Trevor, a Christine Stephanie Nicolls. The Dictionary of National Biography: Twenthieth Century: Ed. by E[dgar] Trevor] Williams and C[hristine] S[tephanie] Nicholls. Oxford Univ. Press, 1981.
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