Oosterhuis, H. (2000). Stepchildren of nature: Harry Oosterhuis. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Oosterhuis, Harry. Stepchildren of Nature: Harry Oosterhuis. Chicago [u.a.]: University of Chicago Press, 2000.
Lua MLA (8ú heag.)Oosterhuis, Harry. Stepchildren of Nature: Harry Oosterhuis. University of Chicago Press, 2000.
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