Tauber Maurice F. & Stephens, I. R. (1967). Library surveys.
Chicago Style aipamenaTauber Maurice F. and Irlene Roemer Stephens. Library Surveys. 1967.
MLA aipamenaTauber Maurice F. and Irlene Roemer Stephens. Library Surveys. 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.