Wismer, D. (1986). Selection Policy: Maine State Library, Reader and Information Services Division.
Citazione stile Chigago Style (17a edizione)Wismer, Donald. Selection Policy: Maine State Library, Reader and Information Services Division. 1986.
Citatione MLA (9a ed.)Wismer, Donald. Selection Policy: Maine State Library, Reader and Information Services Division. 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.