Leighton, H. V. (1992). Electronic Availability Lists for U.S. Federal Document Depository Libraries: Opportunities and Realities.
Citazione stile Chigago Style (17a edizione)Leighton, H. Vernon. Electronic Availability Lists for U.S. Federal Document Depository Libraries: Opportunities and Realities. 1992.
Citatione MLA (9a ed.)Leighton, H. Vernon. Electronic Availability Lists for U.S. Federal Document Depository Libraries: Opportunities and Realities. 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.