APA-referens (7:e uppl.)

BECKFORD, J. (2003). QUALITY (2 ND ED.). ROUT LEDGE.

Chicago-referens (17:e uppl.)

BECKFORD, JOHN. QUALITY. 2 ND ED. NEW YORK: ROUT LEDGE, 2003.

MLA-referens (9:e uppl.)

BECKFORD, JOHN. QUALITY. 2 ND ED. ROUT LEDGE, 2003.