Ball, D., & Pye, J. (1998). Library Purchasing Consortia: Achieving Value for Money and Shaping the Emerging Electronic Marketplace.
Citazione stile Chigago Style (17a edizione)Ball, David, e Jo Pye. Library Purchasing Consortia: Achieving Value for Money and Shaping the Emerging Electronic Marketplace. 1998.
Citatione MLA (9a ed.)Ball, David, e Jo Pye. Library Purchasing Consortia: Achieving Value for Money and Shaping the Emerging Electronic Marketplace. 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.