@book{steiner-ga105-de,
  author = {Steiner, Rudolf},
  title = {Welt, Erde und Mensch},
  series = {Rudolf Steiner Gesamtausgabe},
  number = {105},
  edition = {6},
  publisher = {Rudolf Steiner Verlag},
  address = {Basel},
  year = {2017},
  pagetotal = {222},
  isbn = {978-3-7274-1051-2},
  language = {german},
}

@book{steiner-ga105-en-hc1931,
  author = {Steiner, Rudolf},
  title = {Universe, Earth and Man},
  year = {1931},
  language = {english},
  note = {GA 105; edition code HC1931},
}

@online{anthroposophyai-ga105,
  author = {Steiner, Rudolf},
  title = {Welt, Erde und Mensch (GA 105), as served by anthroposophy.ai},
  url = {https://anthroposophy.ai/contents/105/},
  urldate = {2026-10-21},
  organization = {anthroposophy.ai},
  note = {Rudolf Steiner, Welt, Erde und Mensch (GA 105), as served by anthroposophy.ai, https://anthroposophy.ai/ga/105/, register entry https://anthroposophy.ai/contents/105/, status as of 2026-10-21: German served; English editions HC1931.},
}