por Hopwood, Anthony G [ed.] | Unerman, Jeffrey [ed.] | Fries, Jessica [ed.].
por Unerman, Jeffrey [ed.] | Bebbington, Jan [ed.] | O'Dwyer, Brendan [ed.].
por Bebbington, Jan [editor] | Unerman, Jeffrey [editor] | O'Dwyer, Brendan [editor].
Con tecnología Koha