Einar Sigurbjornsson (Sigurbjornsson, Einar)

is

• 
  Helgakver
  by Helgi Halfdanarson, Einar Sigurbjornsson
  Hardcover, Islenzka bokmenntafelag, ISBN 9979660937 (9979-66-093-7)

English

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  Ministry within the People of God: The Development of the Doctrines on the Church and on the Ministry in the Second Vatican Council's De Ecclesia.
  by Einar Sigurbjornsson
  Hardcover, Gleerup, ISBN 9140035034 (91-40-03503-4)