(1990). Council on Library Resources, Inc. Thirty-Fourth Annual Report/1990.
Citazione stile Chigago Style (17a edizione)Council on Library Resources, Inc. Thirty-Fourth Annual Report/1990. 1990.
Citatione MLA (9a ed.)Council on Library Resources, Inc. Thirty-Fourth Annual Report/1990. 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.