@book{steiner-ga69a-de,
  author = {Steiner, Rudolf},
  title = {Wahrheiten und Irrtümer der Geistesforschung},
  series = {Rudolf Steiner Gesamtausgabe},
  number = {69a},
  edition = {1},
  publisher = {Rudolf Steiner Verlag},
  address = {Basel},
  year = {2007},
  pagetotal = {340},
  isbn = {978-3-7274-0691-1},
  language = {german},
}

@online{anthroposophyai-ga69a,
  author = {Steiner, Rudolf},
  title = {Wahrheiten und Irrtümer der Geistesforschung (GA 69a), as served by anthroposophy.ai},
  url = {https://anthroposophy.ai/contents/69a/},
  urldate = {2026-10-21},
  organization = {anthroposophy.ai},
  note = {Rudolf Steiner, Wahrheiten und Irrtümer der Geistesforschung (GA 69a), as served by anthroposophy.ai, https://anthroposophy.ai/ga/69a/, register entry https://anthroposophy.ai/contents/69a/, status as of 2026-10-21: German partly served; English editions English.},
}