Potter, W. G. (1988). "Of Making Many Books There Is No End": Bibliometrics and Libraries.
Citazione stile Chigago Style (17a edizione)Potter, William Gray. "Of Making Many Books There Is No End": Bibliometrics and Libraries. 1988.
Citatione MLA (9a ed.)Potter, William Gray. "Of Making Many Books There Is No End": Bibliometrics and Libraries. 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.