University of Illinois (Urbana-Champaign campus). Library School. (1949). Occasional papers. University of Illinois Library School.
Chicago Style aipamenaUniversity of Illinois (Urbana-Champaign campus). Library School. Occasional Papers. Urbana, Ill.: University of Illinois Library School, 1949.
MLA aipamenaUniversity of Illinois (Urbana-Champaign campus). Library School. Occasional Papers. University of Illinois Library School, 1949.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.