Helfer, D. S. (1999). Has the Virtual University Library Truly Arrived?
Citazione stile Chigago Style (17a edizione)Helfer, Doris Small. Has the Virtual University Library Truly Arrived? 1999.
Citatione MLA (9a ed.)Helfer, Doris Small. Has the Virtual University Library Truly Arrived? 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.