Wilson, B. L., & Wilson, K. (1975). DRG: Directory of research grants. Oryx Press.
Lua i Stíl Chicago (17ú heag.)Wilson, Betty L., agus K. Wilson. DRG: Directory of Research Grants. Phoenix, Ariz: Oryx Press, 1975.
Lua MLA (9ú heag.)Wilson, Betty L., agus K. Wilson. DRG: Directory of Research Grants. Oryx Press, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.