Willing, J. Willing's press guide and advertisers' directory and handbook. J. Willing.
Lua i Stíl Chicago (17ú heag.)Willing, James. Willing's Press Guide and Advertisers' Directory and Handbook. London: J. Willing.
Lua MLA (8ú heag.)Willing, James. Willing's Press Guide and Advertisers' Directory and Handbook. J. Willing.
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