Firth, R. E. (1973). Guidelines for commitee and board menbers. Review and Herald.
Lua i Stíl Chicago (17ú heag.)Firth, Robert E. Guidelines for Commitee and Board Menbers. Review and Herald, 1973.
Lua MLA (9ú heag.)Firth, Robert E. Guidelines for Commitee and Board Menbers. Review and Herald, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.