Sills, M. D. (2015). Changing world, unchanging mission: Responding to global challenges. IVP Books.
Lua i Stíl Chicago (17ú heag.)Sills, M. David. Changing World, Unchanging Mission: Responding to Global Challenges. Downers Grove, IL: IVP Books, 2015.
Lua MLA (9ú heag.)Sills, M. David. Changing World, Unchanging Mission: Responding to Global Challenges. IVP Books, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.