Sparr, K. (1997). David Kellner - A Biographical Survay.
Lua i Stíl Chicago (17ú heag.)Sparr, Kenneth. David Kellner - A Biographical Survay. Nynäshamn (Sweden), 1997.
Lua MLA (8ú heag.)Sparr, Kenneth. David Kellner - A Biographical Survay. 1997.
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