Nicolls, C. S., & Thomas, K. (1996). The Dictionary of National Biography: Twenthieth Century: Ed. by C[hristine] S[tephanie] Nicholls. Consultant ed.: Keith Thomas (1. publ.). Oxford Univ. Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNicolls, Christine Stephanie, और Keith Thomas. The Dictionary of National Biography: Twenthieth Century: Ed. by C[hristine] S[tephanie] Nicholls. Consultant Ed.: Keith Thomas. 1. publ. Oxford [u.a.]: Oxford Univ. Press, 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNicolls, Christine Stephanie, और Keith Thomas. The Dictionary of National Biography: Twenthieth Century: Ed. by C[hristine] S[tephanie] Nicholls. Consultant Ed.: Keith Thomas. 1. publ. Oxford Univ. Press, 1996.
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