Vlcek, C. W., & Wiman, R. V. (1989). Managing media services: Theory and practice. Libraries Unlimited.
Citazione stile Chigago Style (17a edizione)Vlcek, Charles W., e Raymond V. Wiman. Managing Media Services: Theory and Practice. Englewood, Colo.: Libraries Unlimited, 1989.
Citatione MLA (8a ed.)Vlcek, Charles W., e Raymond V. Wiman. Managing Media Services: Theory and Practice. Libraries Unlimited, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.