Davis, R. (2009). A Web-Based Usage Counter for Serial Collections (1–). The Serials Librarian. https://doi.org/10.1080/03615260802669425
Davis, Roger. 2009. “A Web-Based Usage Counter for Serial Collections”. The Serials Librarian. https://doi.org/10.1080/03615260802669425.
Davis, Roger. A Web-Based Usage Counter for Serial Collections. The Serials Librarian, 1 Jan. 2009, https://doi.org/10.1080/03615260802669425.