Bell, R. Self assessment tests for the practicing radiographer. University Park Press.
Chicago-referens (17:e uppl.)Bell, Roy. Self Assessment Tests for the Practicing Radiographer. University Park Press.
MLA-referens (8:e uppl.)Bell, Roy. Self Assessment Tests for the Practicing Radiographer. University Park Press.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.