Billington, J. H. (1996). Here Today, Here Tomorrow: The Imperative of Collections Security.
Citazione stile Chigago Style (17a edizione)Billington, James H. Here Today, Here Tomorrow: The Imperative of Collections Security. 1996.
Citatione MLA (9a ed.)Billington, James H. Here Today, Here Tomorrow: The Imperative of Collections Security. 1996.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.