Hernon, P., & Dugan, R. E. (1998). Depository Library Service Expectations and the Superintendent of Documents, Government Printing Office.
Citazione stile Chigago Style (17a edizione)Hernon, Peter, e Robert E. Dugan. Depository Library Service Expectations and the Superintendent of Documents, Government Printing Office. 1998.
Citatione MLA (9a ed.)Hernon, Peter, e Robert E. Dugan. Depository Library Service Expectations and the Superintendent of Documents, Government Printing Office. 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.