Norman, R. V. (1977). A Method of Book Selection for a Small Public Library.
Citazione stile Chigago Style (17a edizione)Norman, Ronald V. A Method of Book Selection for a Small Public Library. 1977.
Citatione MLA (9a ed.)Norman, Ronald V. A Method of Book Selection for a Small Public Library. 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.