Editora, L. (1980). Librarians, professionals and paraprofessionals.
Chicago Style aipamenaEditora, La. Librarians, Professionals and Paraprofessionals. 1980.
MLA aipamenaEditora, La. Librarians, Professionals and Paraprofessionals. 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.