@book{steiner-ga9-de,
  author = {Steiner, Rudolf},
  title = {Theosophie. Einführung in übersinnliche Welterkenntnis und Menschenbestimmung (1904)},
  series = {Rudolf Steiner Gesamtausgabe},
  number = {9},
  edition = {33},
  publisher = {Rudolf Steiner Verlag},
  address = {Basel},
  year = {2013},
  pagetotal = {258},
  isbn = {978-3-7274-0091-9},
  language = {german},
}

@book{steiner-ga9-en-ap1971,
  author = {Steiner, Rudolf},
  title = {Theosophy},
  translator = {H. Monges and G. Church},
  publisher = {Anthroposophic Press},
  address = {New York},
  year = {1971},
  pagetotal = {195},
  isbn = {78-135997},
  language = {english},
  note = {GA 9; edition code AP1971},
}

@book{steiner-ga9-en-rsp1965,
  author = {Steiner, Rudolf},
  title = {Theosophy},
  translator = {M. Cotterell and A. P. Shepherd},
  publisher = {Rudolf Steiner Press},
  address = {London},
  year = {1965},
  pagetotal = {151},
  language = {english},
  note = {GA 9; edition code RSP1965},
}

@online{anthroposophyai-ga9,
  author = {Steiner, Rudolf},
  title = {Theosophie. Einführung in übersinnliche Welterkenntnis und Menschenbestimmung (1904) (GA 9), as served by anthroposophy.ai},
  url = {https://anthroposophy.ai/contents/9/},
  urldate = {2026-10-21},
  organization = {anthroposophy.ai},
  note = {Rudolf Steiner, Theosophie. Einführung in übersinnliche Welterkenntnis und Menschenbestimmung (1904) (GA 9), as served by anthroposophy.ai, https://anthroposophy.ai/ga/9/, register entry https://anthroposophy.ai/contents/9/, status as of 2026-10-21: German served; English editions AP1971, RSP1965.},
}