Citazione Stile APA (7a Edizione)
Johannsen, C. G. (2015). Library user metaphors and services: How librarians look at their users. De Gruyter Saur.
Citazione stile Chigago Style (17a edizione)
Johannsen, Carl Gustav. Library User Metaphors and Services: How Librarians Look at Their Users. Berlin, [Germany] ; Boston, [Massachusetts]: De Gruyter Saur, 2015.
Citatione MLA (9a ed.)
Johannsen, Carl Gustav. Library User Metaphors and Services: How Librarians Look at Their Users. De Gruyter Saur, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.