Lua APA (7ú heag.)
Küng, A. (1977). Bruce Olson: Missionary or colonizer? Christian Herald Books.
Lua i Stíl Chicago (17ú heag.)
Küng, Andres. Bruce Olson: Missionary or Colonizer? Chappaqua, N.Y.: Christian Herald Books, 1977.
Lua MLA (9ú heag.)
Küng, Andres. Bruce Olson: Missionary or Colonizer? Christian Herald Books, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.