@book{steiner-ga139-de,
  author = {Steiner, Rudolf},
  title = {Das Markus-Evangelium},
  series = {Rudolf Steiner Gesamtausgabe},
  number = {139},
  edition = {6},
  publisher = {Rudolf Steiner Verlag},
  address = {Basel},
  year = {1985},
  pagetotal = {234},
  isbn = {978-3-7274-6651-9},
  language = {german},
}

@book{steiner-ga139-en-ap1986,
  author = {Steiner, Rudolf},
  title = {The Gospel of St. Mark},
  translator = {Conrad Mainzer},
  publisher = {Anthroposophic Press},
  year = {1986},
  language = {english},
  note = {GA 139; edition code AP1986},
}

@online{anthroposophyai-ga139,
  author = {Steiner, Rudolf},
  title = {Das Markus-Evangelium (GA 139), as served by anthroposophy.ai},
  url = {https://anthroposophy.ai/contents/139/},
  urldate = {2026-10-21},
  organization = {anthroposophy.ai},
  note = {Rudolf Steiner, Das Markus-Evangelium (GA 139), as served by anthroposophy.ai, https://anthroposophy.ai/ga/139/, register entry https://anthroposophy.ai/contents/139/, status as of 2026-10-21: German served; English editions AP1986.},
}