Newbigin, L. (1994). A word in season: Perspectives on christian world mission. William B. Eerdmans.
Lua i Stíl Chicago (17ú heag.)Newbigin, Lesslie. A Word in Season: Perspectives on Christian World Mission. Grand Rapids: William B. Eerdmans, 1994.
Lua MLA (9ú heag.)Newbigin, Lesslie. A Word in Season: Perspectives on Christian World Mission. William B. Eerdmans, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.